15261602256 has 160 divisors (see below), whose sum is σ = 46320844800. Its totient is φ = 4797636480.

The previous prime is 15261602233. The next prime is 15261602267. The reversal of 15261602256 is 65220616251.

15261602256 is a `hidden beast` number, since 1 + 5 + 26 + 1 + 602 + 25 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 15261602256.

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, 1859121 + ... + 1867311.

It is an arithmetic number, because the mean of its divisors is an integer number (289505280).

Almost surely, 2^15261602256 is an apocalyptic number.

15261602256 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 15261602256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23160422400).

15261602256 is an abundant number, since it is smaller than the sum of its proper divisors (31059242544).

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

15261602256 is a wasteful number, since it uses less digits than its factorization.

15261602256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8454 (or 8442 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 15261602256 in words is "fifteen billion, two hundred sixty-one million, six hundred two thousand, two hundred fifty-six".