11851564113 has 16 divisors (see below), whose sum is σ = 17561843200. Its totient is φ = 7899256080.

The previous prime is 11851564103. The next prime is 11851564147. The reversal of 11851564113 is 31146515811.

11851564113 is a `hidden beast` number, since 1 + 1 + 8 + 5 + 1 + 5 + 641 + 1 + 3 = 666.

It is not a de Polignac number, because 11851564113 - 2²⁴ = 11834786897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11851564103) 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, 77943 + ... + 172563.

It is an arithmetic number, because the mean of its divisors is an integer number (1097615200).

Almost surely, 2^11851564113 is an apocalyptic number.

It is an amenable number.

11851564113 is a deficient number, since it is larger than the sum of its proper divisors (5710279087).

11851564113 is an equidigital number, since it uses as much as digits as its factorization.

11851564113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99269 (or 99263 counting only the distinct ones).

The product of its digits is 14400, while the sum is 36.

The spelling of 11851564113 in words is "eleven billion, eight hundred fifty-one million, five hundred sixty-four thousand, one hundred thirteen".