66430060464 has 40 divisors (see below), whose sum is σ = 173185415920. Its totient is φ = 21940201728.

The previous prime is 66430060453. The next prime is 66430060481. The reversal of 66430060464 is 46406003466.

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, 6343207 + ... + 6353670.

It is an arithmetic number, because the mean of its divisors is an integer number (4329635398).

Almost surely, 2^66430060464 is an apocalyptic number.

It is an amenable number.

66430060464 is an abundant number, since it is smaller than the sum of its proper divisors (106755355456).

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

66430060464 is a wasteful number, since it uses less digits than its factorization.

66430060464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12696997 (or 12696991 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 39.

The spelling of 66430060464 in words is "sixty-six billion, four hundred thirty million, sixty thousand, four hundred sixty-four".