11636553116 has 24 divisors (see below), whose sum is σ = 22367748480. Its totient is φ = 5272396272.

The previous prime is 11636553113. The next prime is 11636553121. The reversal of 11636553116 is 61135563611.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 11636553116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11636553113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3326786 + ... + 3330281.

It is an arithmetic number, because the mean of its divisors is an integer number (931989520).

Almost surely, 2^11636553116 is an apocalyptic number.

It is an amenable number.

11636553116 is a deficient number, since it is larger than the sum of its proper divisors (10731195364).

11636553116 is a wasteful number, since it uses less digits than its factorization.

11636553116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6657113 (or 6657111 counting only the distinct ones).

The product of its digits is 48600, while the sum is 38.

The spelling of 11636553116 in words is "eleven billion, six hundred thirty-six million, five hundred fifty-three thousand, one hundred sixteen".