664327162380 has 96 divisors (see below), whose sum is σ = 2125958446080. Its totient is φ = 151838242560.

The previous prime is 664327162379. The next prime is 664327162393. The reversal of 664327162380 is 83261723466.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12435166 + ... + 12488474.

It is an arithmetic number, because the mean of its divisors is an integer number (22145400480).

Almost surely, 2^664327162380 is an apocalyptic number.

664327162380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

664327162380 is an abundant number, since it is smaller than the sum of its proper divisors (1461631283700).

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

664327162380 is a wasteful number, since it uses less digits than its factorization.

664327162380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82999 (or 82997 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 48.

The spelling of 664327162380 in words is "six hundred sixty-four billion, three hundred twenty-seven million, one hundred sixty-two thousand, three hundred eighty".