66407733152 has 24 divisors (see below), whose sum is σ = 130747542912. Its totient is φ = 33202008000.

The previous prime is 66407733151. The next prime is 66407733179. The reversal of 66407733152 is 25133770466.

It is not an unprimeable number, because it can be changed into a prime (66407733151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 658577 + ... + 752687.

It is an arithmetic number, because the mean of its divisors is an integer number (5447814288).

Almost surely, 2^66407733152 is an apocalyptic number.

It is an amenable number.

66407733152 is a deficient number, since it is larger than the sum of its proper divisors (64339809760).

66407733152 is a wasteful number, since it uses less digits than its factorization.

66407733152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116172 (or 116164 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 44.

The spelling of 66407733152 in words is "sixty-six billion, four hundred seven million, seven hundred thirty-three thousand, one hundred fifty-two".