664527014920 has 32 divisors (see below), whose sum is σ = 1543417585920. Its totient is φ = 257236263360.

The previous prime is 664527014911. The next prime is 664527014923. The reversal of 664527014920 is 29410725466.

It is not an unprimeable number, because it can be changed into a prime (664527014923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267953202 + ... + 267955681.

It is an arithmetic number, because the mean of its divisors is an integer number (48231799560).

Almost surely, 2^664527014920 is an apocalyptic number.

It is an amenable number.

664527014920 is an abundant number, since it is smaller than the sum of its proper divisors (878890571000).

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

664527014920 is a wasteful number, since it uses less digits than its factorization.

664527014920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535908925 (or 535908921 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 664527014920 in words is "six hundred sixty-four billion, five hundred twenty-seven million, fourteen thousand, nine hundred twenty".