11663651356 has 12 divisors (see below), whose sum is σ = 23327302768. Its totient is φ = 4998707712.

The previous prime is 11663651347. The next prime is 11663651357. The reversal of 11663651356 is 65315636611.

11663651356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

11663651356 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11663651357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208279461 + ... + 208279516.

Almost surely, 2^11663651356 is an apocalyptic number.

It is an amenable number.

11663651356 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11663651356 is a wasteful number, since it uses less digits than its factorization.

11663651356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416558988 (or 416558986 counting only the distinct ones).

The product of its digits is 291600, while the sum is 43.

The spelling of 11663651356 in words is "eleven billion, six hundred sixty-three million, six hundred fifty-one thousand, three hundred fifty-six".