636530646006 has 12 divisors (see below), whose sum is σ = 1379149733052. Its totient is φ = 212176881996.

The previous prime is 636530645977. The next prime is 636530646023. The reversal of 636530646006 is 600646035636.

It is a happy number.

636530646006 is a `hidden beast` number, since 6 + 3 + 6 + 5 + 30 + 6 + 4 + 600 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17681406816 + ... + 17681406851.

It is an arithmetic number, because the mean of its divisors is an integer number (114929144421).

Almost surely, 2^636530646006 is an apocalyptic number.

636530646006 is an abundant number, since it is smaller than the sum of its proper divisors (742619087046).

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

636530646006 is a wasteful number, since it uses less digits than its factorization.

636530646006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35362813675 (or 35362813672 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 45.

The spelling of 636530646006 in words is "six hundred thirty-six billion, five hundred thirty million, six hundred forty-six thousand, six".