11506660615604 has 72 divisors (see below), whose sum is σ = 25772910597504. Its totient is φ = 4398527390400.

The previous prime is 11506660615603. The next prime is 11506660615627. The reversal of 11506660615604 is 40651606660511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11506660615603) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 31860992 + ... + 32220119.

It is an arithmetic number, because the mean of its divisors is an integer number (357957091632).

Almost surely, 2^{11506660615604} is an apocalyptic number.

11506660615604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11506660615604 is an abundant number, since it is smaller than the sum of its proper divisors (14266249981900).

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

11506660615604 is a wasteful number, since it uses less digits than its factorization.

11506660615604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64081197 (or 64081184 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 47.

The spelling of 11506660615604 in words is "eleven trillion, five hundred six billion, six hundred sixty million, six hundred fifteen thousand, six hundred four".