11516572815 has 32 divisors (see below), whose sum is σ = 20236608000. Its totient is φ = 5546305920.

The previous prime is 11516572777. The next prime is 11516572817. The reversal of 11516572815 is 51827561511.

It is not a de Polignac number, because 11516572815 - 2⁹ = 11516572303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11516572817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209635 + ... + 258804.

It is an arithmetic number, because the mean of its divisors is an integer number (632394000).

Almost surely, 2^11516572815 is an apocalyptic number.

11516572815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11516572815 is a deficient number, since it is larger than the sum of its proper divisors (8720035185).

11516572815 is a wasteful number, since it uses less digits than its factorization.

11516572815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468607.

The product of its digits is 84000, while the sum is 42.

The spelling of 11516572815 in words is "eleven billion, five hundred sixteen million, five hundred seventy-two thousand, eight hundred fifteen".