636534605116 has 6 divisors (see below), whose sum is σ = 1113935558960. Its totient is φ = 318267302556.

The previous prime is 636534605059. The next prime is 636534605153. The reversal of 636534605116 is 611506435636.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79566825636 + ... + 79566825643.

Almost surely, 2^636534605116 is an apocalyptic number.

It is an amenable number.

636534605116 is a deficient number, since it is larger than the sum of its proper divisors (477400953844).

636534605116 is a wasteful number, since it uses less digits than its factorization.

636534605116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159133651283 (or 159133651281 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 636534605116 in words is "six hundred thirty-six billion, five hundred thirty-four million, six hundred five thousand, one hundred sixteen".