12633616522 has 4 divisors (see below), whose sum is σ = 18950424786. Its totient is φ = 6316808260.

The previous prime is 12633616507. The next prime is 12633616543. The reversal of 12633616522 is 22561633621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12631736881 + 1879641 = 112391^2 + 1371^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3158404129 + ... + 3158404132.

Almost surely, 2^12633616522 is an apocalyptic number.

12633616522 is a deficient number, since it is larger than the sum of its proper divisors (6316808264).

12633616522 is an equidigital number, since it uses as much as digits as its factorization.

12633616522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6316808263.

The product of its digits is 77760, while the sum is 37.

The spelling of 12633616522 in words is "twelve billion, six hundred thirty-three million, six hundred sixteen thousand, five hundred twenty-two".