66325964460 has 96 divisors (see below), whose sum is σ = 212278026240. Its totient is φ = 15157724928.

The previous prime is 66325964447. The next prime is 66325964479. The reversal of 66325964460 is 6446952366.

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, 4056181 + ... + 4072499.

It is an arithmetic number, because the mean of its divisors is an integer number (2211229440).

Almost surely, 2^66325964460 is an apocalyptic number.

66325964460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66325964460 is an abundant number, since it is smaller than the sum of its proper divisors (145952061780).

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

66325964460 is a wasteful number, since it uses less digits than its factorization.

66325964460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26015 (or 26013 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 51.

The spelling of 66325964460 in words is "sixty-six billion, three hundred twenty-five million, nine hundred sixty-four thousand, four hundred sixty".