66118492368 has 30 divisors (see below), whose sum is σ = 185039947794. Its totient is φ = 22039497408.

The previous prime is 66118492301. The next prime is 66118492381. The reversal of 66118492368 is 86329481166.

66118492368 is a `hidden beast` number, since 6 + 6 + 118 + 492 + 36 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 35250813504 + 30867678864 = 187752^2 + 175692^2 .

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 229577955 + ... + 229578242.

Almost surely, 2^66118492368 is an apocalyptic number.

It is an amenable number.

66118492368 is an abundant number, since it is smaller than the sum of its proper divisors (118921455426).

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

66118492368 is a wasteful number, since it uses less digits than its factorization.

66118492368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459156211 (or 459156202 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The spelling of 66118492368 in words is "sixty-six billion, one hundred eighteen million, four hundred ninety-two thousand, three hundred sixty-eight".