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16478959494080 = 2651511574015417
BaseRepresentation
bin1110111111001100111010…
…0001101110001111000000
32011100101002000120001221002
43233303032201232033000
54124442402112302310
655014155100151132
73320364656364236
oct357631641561700
964311060501832
1016478959494080
1152837620353a6
121a218962384a8
13926c6150b385
1440d82b9a6956
151d89c775eda5
hexefcce86e3c0

16478959494080 has 224 divisors, whose sum is σ = 39858476982912. Its totient is φ = 6488801280000.

The previous prime is 16478959494071. The next prime is 16478959494139. The reversal of 16478959494080 is 8049495987461.

It is a super-2 number, since 2×164789594940802 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16478959493989 and 16478959494007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3042079532 + ... + 3042084948.

It is an arithmetic number, because the mean of its divisors is an integer number (177939629388).

Almost surely, 216478959494080 is an apocalyptic number.

16478959494080 is a gapful number since it is divisible by the number (10) 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 16478959494080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19929238491456).

16478959494080 is an abundant number, since it is smaller than the sum of its proper divisors (23379517488832).

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

16478959494080 is a wasteful number, since it uses less digits than its factorization.

16478959494080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6143 (or 6133 counting only the distinct ones).

The product of its (nonzero) digits is 627056640, while the sum is 74.

The spelling of 16478959494080 in words is "sixteen trillion, four hundred seventy-eight billion, nine hundred fifty-nine million, four hundred ninety-four thousand, eighty".