66982108392 has 48 divisors (see below), whose sum is σ = 183206034180. Its totient is φ = 22106304000.

The previous prime is 66982108379. The next prime is 66982108423. The reversal of 66982108392 is 29380128966.

66982108392 is a `hidden beast` number, since 66 + 98 + 2 + 108 + 392 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 66189911076 + 792197316 = 257274^2 + 28146^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4598209 + ... + 4612752.

Almost surely, 2^66982108392 is an apocalyptic number.

It is an amenable number.

66982108392 is an abundant number, since it is smaller than the sum of its proper divisors (116223925788).

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

66982108392 is a wasteful number, since it uses less digits than its factorization.

66982108392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9211074 (or 9211067 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 66982108392 in words is "sixty-six billion, nine hundred eighty-two million, one hundred eight thousand, three hundred ninety-two".