11655506556660 has 24 divisors (see below), whose sum is σ = 32635418358816. Its totient is φ = 3108135081760.

The previous prime is 11655506556619. The next prime is 11655506556691. The reversal of 11655506556660 is 6665560555611.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 11655506556660.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97129221246 + ... + 97129221365.

It is an arithmetic number, because the mean of its divisors is an integer number (1359809098284).

Almost surely, 2^{11655506556660} is an apocalyptic number.

11655506556660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11655506556660 is an abundant number, since it is smaller than the sum of its proper divisors (20979911802156).

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

11655506556660 is a wasteful number, since it uses less digits than its factorization.

11655506556660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194258442623 (or 194258442621 counting only the distinct ones).

The product of its (nonzero) digits is 24300000, while the sum is 57.

The spelling of 11655506556660 in words is "eleven trillion, six hundred fifty-five billion, five hundred six million, five hundred fifty-six thousand, six hundred sixty".