11516615156 has 12 divisors (see below), whose sum is σ = 20226836868. Its totient is φ = 5737518912.

The previous prime is 11516615129. The next prime is 11516615161. The reversal of 11516615156 is 65151661511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5998502500 + 5518112656 = 77450^2 + 74284^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5195921 + ... + 5198136.

It is an arithmetic number, because the mean of its divisors is an integer number (1685569739).

Almost surely, 2^11516615156 is an apocalyptic number.

It is an amenable number.

11516615156 is a deficient number, since it is larger than the sum of its proper divisors (8710221712).

11516615156 is a wasteful number, since it uses less digits than its factorization.

11516615156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10394338 (or 10394336 counting only the distinct ones).

The product of its digits is 27000, while the sum is 38.

The spelling of 11516615156 in words is "eleven billion, five hundred sixteen million, six hundred fifteen thousand, one hundred fifty-six".