11615574056 has 16 divisors (see below), whose sum is σ = 21781597140. Its totient is φ = 5807148160.

The previous prime is 11615574043. The next prime is 11615574097. The reversal of 11615574056 is 65047551611.

It can be written as a sum of positive squares in 2 ways, for example, as 10740005956 + 875568100 = 103634^2 + 29590^2 .

It is a super-2 number, since 2×11615574056² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2396 + ... + 152436.

Almost surely, 2^11615574056 is an apocalyptic number.

It is an amenable number.

11615574056 is a deficient number, since it is larger than the sum of its proper divisors (10166023084).

11615574056 is a wasteful number, since it uses less digits than its factorization.

11615574056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159724 (or 159720 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 41.

The spelling of 11615574056 in words is "eleven billion, six hundred fifteen million, five hundred seventy-four thousand, fifty-six".