11316511656 has 24 divisors (see below), whose sum is σ = 30648885930. Its totient is φ = 3772170528.

The previous prime is 11316511651. The next prime is 11316511691. The reversal of 11316511656 is 65611561311.

11316511656 is a `hidden beast` number, since 1 + 131 + 6 + 511 + 6 + 5 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6844914756 + 4471596900 = 82734^2 + 66870^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 11316511656.

It is not an unprimeable number, because it can be changed into a prime (11316511651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78586815 + ... + 78586958.

Almost surely, 2^11316511656 is an apocalyptic number.

It is an amenable number.

11316511656 is an abundant number, since it is smaller than the sum of its proper divisors (19332374274).

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

11316511656 is a wasteful number, since it uses less digits than its factorization.

11316511656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157173785 (or 157173778 counting only the distinct ones).

The product of its digits is 16200, while the sum is 36.

The spelling of 11316511656 in words is "eleven billion, three hundred sixteen million, five hundred eleven thousand, six hundred fifty-six".