664502642466630 has 64 divisors (see below), whose sum is σ = 1741625895575808. Its totient is φ = 160921442380160.

The previous prime is 664502642466583. The next prime is 664502642466631. The reversal of 664502642466630 is 36664246205466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664502642466631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1062857697 + ... + 1063482716.

It is an arithmetic number, because the mean of its divisors is an integer number (27212904618372).

Almost surely, 2^{664502642466630} is an apocalyptic number.

664502642466630 is an abundant number, since it is smaller than the sum of its proper divisors (1077123253109178).

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

664502642466630 is a wasteful number, since it uses less digits than its factorization.

664502642466630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126341381.

The product of its (nonzero) digits is 179159040, while the sum is 60.

The spelling of 664502642466630 in words is "six hundred sixty-four trillion, five hundred two billion, six hundred forty-two million, four hundred sixty-six thousand, six hundred thirty".