15534790656 has 288 divisors, whose sum is σ = 52568792640. Its totient is φ = 4034150400.

The previous prime is 15534790637. The next prime is 15534790669. The reversal of 15534790656 is 65609743551.

It is a junction number, because it is equal to n+sod(n) for n = 15534790599 and 15534790608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3309271 + ... + 3313961.

It is an arithmetic number, because the mean of its divisors is an integer number (182530530).

Almost surely, 2^15534790656 is an apocalyptic number.

15534790656 is a gapful number since it is divisible by the number (16) 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 15534790656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26284396320).

15534790656 is an abundant number, since it is smaller than the sum of its proper divisors (37034001984).

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

15534790656 is a wasteful number, since it uses less digits than its factorization.

15534790656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4741 (or 4714 counting only the distinct ones).

The product of its (nonzero) digits is 3402000, while the sum is 51.

The spelling of 15534790656 in words is "fifteen billion, five hundred thirty-four million, seven hundred ninety thousand, six hundred fifty-six".