664365506010 has 16 divisors (see below), whose sum is σ = 1594477214496. Its totient is φ = 177164134928.

The previous prime is 664365506003. The next prime is 664365506027. The reversal of 664365506010 is 10605563466.

It is a super-2 number, since 2×664365506010² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11072758404 + ... + 11072758463.

It is an arithmetic number, because the mean of its divisors is an integer number (99654825906).

Almost surely, 2^664365506010 is an apocalyptic number.

664365506010 is an abundant number, since it is smaller than the sum of its proper divisors (930111708486).

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

664365506010 is a wasteful number, since it uses less digits than its factorization.

664365506010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22145516877.

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 664365506010 in words is "six hundred sixty-four billion, three hundred sixty-five million, five hundred six thousand, ten".