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159819228807168 = 2153721719139739
BaseRepresentation
bin100100010101101011010000…
…010111001000000000000000
3202221212120100211210222022210
4210111223100113020000000
5131421434240033312133
61323523535023102120
745443362322404200
oct4425532027100000
9687776324728283
10159819228807168
1146a17a55201557
1215b12054441940
136b23b72375078
142b67413162400
1513723e90d2763
hex915ad05c8000

159819228807168 has 1536 divisors, whose sum is σ = 557276086080000. Its totient is φ = 40367063826432.

The previous prime is 159819228807143. The next prime is 159819228807193. The reversal of 159819228807168 is 861708822918951.

It is an interprime number because it is at equal distance from previous prime (159819228807143) and next prime (159819228807193).

It is a tau number, because it is divible by the number of its divisors (1536).

It is a self number, because there is not a number n which added to its sum of digits gives 159819228807168.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 216264179343 + ... + 216264180081.

It is an arithmetic number, because the mean of its divisors is an integer number (362809951875).

Almost surely, 2159819228807168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 159819228807168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278638043040000).

159819228807168 is an abundant number, since it is smaller than the sum of its proper divisors (397456857272832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

159819228807168 is a wasteful number, since it uses less digits than its factorization.

159819228807168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961 (or 926 counting only the distinct ones).

The product of its (nonzero) digits is 278691840, while the sum is 75.

The spelling of 159819228807168 in words is "one hundred fifty-nine trillion, eight hundred nineteen billion, two hundred twenty-eight million, eight hundred seven thousand, one hundred sixty-eight".