66080572740792 has 96 divisors (see below), whose sum is σ = 179224858874880. Its totient is φ = 21995274565440.

The previous prime is 66080572740751. The next prime is 66080572740803. The reversal of 66080572740792 is 29704727508066.

66080572740792 is a `hidden beast` number, since 6 + 60 + 80 + 5 + 7 + 2 + 7 + 407 + 92 = 666.

It is a super-2 number, since 2×66080572740792² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1414887313 + ... + 1414934015.

It is an arithmetic number, because the mean of its divisors is an integer number (1866925613280).

Almost surely, 2^{66080572740792} is an apocalyptic number.

It is an amenable number.

66080572740792 is an abundant number, since it is smaller than the sum of its proper divisors (113144286134088).

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

66080572740792 is a wasteful number, since it uses less digits than its factorization.

66080572740792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74473 (or 74466 counting only the distinct ones).

The product of its (nonzero) digits is 71124480, while the sum is 63.

The spelling of 66080572740792 in words is "sixty-six trillion, eighty billion, five hundred seventy-two million, seven hundred forty thousand, seven hundred ninety-two".