12636155146 has 16 divisors (see below), whose sum is σ = 19422167688. Its totient is φ = 6162188800.

The previous prime is 12636155137. The next prime is 12636155171. The reversal of 12636155146 is 64155163621.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10953924921 + 1682230225 = 104661^2 + 41015^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12636155099 and 12636155108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287916 + ... + 328888.

Almost surely, 2^12636155146 is an apocalyptic number.

12636155146 is a deficient number, since it is larger than the sum of its proper divisors (6786012542).

12636155146 is a wasteful number, since it uses less digits than its factorization.

12636155146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44777.

The product of its digits is 129600, while the sum is 40.

The spelling of 12636155146 in words is "twelve billion, six hundred thirty-six million, one hundred fifty-five thousand, one hundred forty-six".