11565882680 has 64 divisors (see below), whose sum is σ = 30058944480. Its totient is φ = 3958374400.

The previous prime is 11565882617. The next prime is 11565882683. The reversal of 11565882680 is 8628856511.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11565882683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 765641 + ... + 780600.

Almost surely, 2^11565882680 is an apocalyptic number.

11565882680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11565882680 is an abundant number, since it is smaller than the sum of its proper divisors (18493061800).

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

11565882680 is a wasteful number, since it uses less digits than its factorization.

11565882680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546280 (or 1546276 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 50.

The spelling of 11565882680 in words is "eleven billion, five hundred sixty-five million, eight hundred eighty-two thousand, six hundred eighty".