66407733164 has 12 divisors (see below), whose sum is σ = 117049602600. Its totient is φ = 32964989568.

The previous prime is 66407733151. The next prime is 66407733179. The reversal of 66407733164 is 46133770466.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59718629 + ... + 59719740.

It is an arithmetic number, because the mean of its divisors is an integer number (9754133550).

Almost surely, 2^66407733164 is an apocalyptic number.

It is an amenable number.

66407733164 is a deficient number, since it is larger than the sum of its proper divisors (50641869436).

66407733164 is a wasteful number, since it uses less digits than its factorization.

66407733164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119438512 (or 119438510 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 47.

The spelling of 66407733164 in words is "sixty-six billion, four hundred seven million, seven hundred thirty-three thousand, one hundred sixty-four".