66207083312 has 20 divisors (see below), whose sum is σ = 128338467360. Its totient is φ = 33087478848.

The previous prime is 66207083249. The next prime is 66207083399. The reversal of 66207083312 is 21338070266.

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, 969887 + ... + 1035902.

It is an arithmetic number, because the mean of its divisors is an integer number (6416923368).

Almost surely, 2^66207083312 is an apocalyptic number.

It is an amenable number.

66207083312 is a deficient number, since it is larger than the sum of its proper divisors (62131384048).

66207083312 is a wasteful number, since it uses less digits than its factorization.

66207083312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007860 (or 2007854 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 66207083312 in words is "sixty-six billion, two hundred seven million, eighty-three thousand, three hundred twelve".