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220899628880 = 245731373311039
BaseRepresentation
bin1100110110111010100…
…1001101011101010000
3210010011212121211120022
43031232221031131100
512104400301111010
6245251353403012
721650045602430
oct3155651153520
9703155554508
10220899628880
1185757099767
123698aa09468
1317aa51c0598
14a997a682c0
155b2d196d55
hex336ea4d750

220899628880 has 320 divisors, whose sum is σ = 624752394240. Its totient is φ = 71029094400.

The previous prime is 220899628877. The next prime is 220899628897. The reversal of 220899628880 is 88826998022.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 212607401 + ... + 212608439.

It is an arithmetic number, because the mean of its divisors is an integer number (1952351232).

Almost surely, 2220899628880 is an apocalyptic number.

220899628880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220899628880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312376197120).

220899628880 is an abundant number, since it is smaller than the sum of its proper divisors (403852765360).

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

220899628880 is a wasteful number, since it uses less digits than its factorization.

220899628880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458 (or 1452 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 62.

The spelling of 220899628880 in words is "two hundred twenty billion, eight hundred ninety-nine million, six hundred twenty-eight thousand, eight hundred eighty".