12635811632356 has 24 divisors (see below), whose sum is σ = 24482956601376. Its totient is φ = 5657826102720.

The previous prime is 12635811632351. The next prime is 12635811632357. The reversal of 12635811632356 is 65323611853621.

It is a super-2 number, since 2×12635811632356² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12635811632351) 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, 2143113001 + ... + 2143118896.

It is an arithmetic number, because the mean of its divisors is an integer number (1020123191724).

Almost surely, 2^{12635811632356} is an apocalyptic number.

It is an amenable number.

12635811632356 is a deficient number, since it is larger than the sum of its proper divisors (11847144969020).

12635811632356 is a wasteful number, since it uses less digits than its factorization.

12635811632356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4286231979 (or 4286231977 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 52.

The spelling of 12635811632356 in words is "twelve trillion, six hundred thirty-five billion, eight hundred eleven million, six hundred thirty-two thousand, three hundred fifty-six".