15605156010656 has 96 divisors (see below), whose sum is σ = 33780295406592. Its totient is φ = 7064155975680.

The previous prime is 15605156010641. The next prime is 15605156010683. The reversal of 15605156010656 is 65601065150651.

It is a self number, because there is not a number n which added to its sum of digits gives 15605156010656.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45770 + ... + 5586806.

It is an arithmetic number, because the mean of its divisors is an integer number (351878077152).

Almost surely, 2^{15605156010656} is an apocalyptic number.

15605156010656 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 15605156010656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16890147703296).

15605156010656 is an abundant number, since it is smaller than the sum of its proper divisors (18175139395936).

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

15605156010656 is a wasteful number, since it uses less digits than its factorization.

15605156010656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5541262 (or 5541254 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 47.

The spelling of 15605156010656 in words is "fifteen trillion, six hundred five billion, one hundred fifty-six million, ten thousand, six hundred fifty-six".