11515140515564 has 48 divisors (see below), whose sum is σ = 23383031970816. Its totient is φ = 4859639668800.

The previous prime is 11515140515537. The next prime is 11515140515633. The reversal of 11515140515564 is 46551504151511.

It is a super-2 number, since 2×11515140515564² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1882907 + ... + 5155154.

It is an arithmetic number, because the mean of its divisors is an integer number (487146499392).

Almost surely, 2^{11515140515564} is an apocalyptic number.

11515140515564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11515140515564 is an abundant number, since it is smaller than the sum of its proper divisors (11867891455252).

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

11515140515564 is a wasteful number, since it uses less digits than its factorization.

11515140515564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7038966 (or 7038964 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 44.

The spelling of 11515140515564 in words is "eleven trillion, five hundred fifteen billion, one hundred forty million, five hundred fifteen thousand, five hundred sixty-four".