66920035054192 has 20 divisors (see below), whose sum is σ = 130162072080816. Its totient is φ = 33329822904320.

The previous prime is 66920035054181. The next prime is 66920035054277. The reversal of 66920035054192 is 29145053002966.

It is a congruent number.

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, 8137159684 + ... + 8137167907.

Almost surely, 2^{66920035054192} is an apocalyptic number.

It is an amenable number.

66920035054192 is a deficient number, since it is larger than the sum of its proper divisors (63242037026624).

66920035054192 is a wasteful number, since it uses less digits than its factorization.

66920035054192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16274327856 (or 16274327850 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 52.

The spelling of 66920035054192 in words is "sixty-six trillion, nine hundred twenty billion, thirty-five million, fifty-four thousand, one hundred ninety-two".