66512667230708 has 96 divisors (see below), whose sum is σ = 123652767694848. Its totient is φ = 31249464076800.

The previous prime is 66512667230699. The next prime is 66512667230753. The reversal of 66512667230708 is 80703276621566.

It is a congruent number.

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, 4692906710 + ... + 4692920882.

It is an arithmetic number, because the mean of its divisors is an integer number (1288049663488).

Almost surely, 2^{66512667230708} is an apocalyptic number.

It is an amenable number.

66512667230708 is a deficient number, since it is larger than the sum of its proper divisors (57140100464140).

66512667230708 is a wasteful number, since it uses less digits than its factorization.

66512667230708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16273 (or 16271 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 59.

The spelling of 66512667230708 in words is "sixty-six trillion, five hundred twelve billion, six hundred sixty-seven million, two hundred thirty thousand, seven hundred eight".