15755766256 has 20 divisors (see below), whose sum is σ = 30529048000. Its totient is φ = 7877302272.

The previous prime is 15755766251. The next prime is 15755766269. The reversal of 15755766256 is 65266755751.

It is a junction number, because it is equal to n+sod(n) for n = 15755766197 and 15755766206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15755766251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261505 + ... + 316063.

It is an arithmetic number, because the mean of its divisors is an integer number (1526452400).

Almost surely, 2^15755766256 is an apocalyptic number.

15755766256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

15755766256 is a deficient number, since it is larger than the sum of its proper divisors (14773281744).

15755766256 is a wasteful number, since it uses less digits than its factorization.

15755766256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72616 (or 72610 counting only the distinct ones).

The product of its digits is 13230000, while the sum is 55.

The spelling of 15755766256 in words is "fifteen billion, seven hundred fifty-five million, seven hundred sixty-six thousand, two hundred fifty-six".