66100791192 has 32 divisors (see below), whose sum is σ = 165993031680. Its totient is φ = 21934789920.

The previous prime is 66100791173. The next prime is 66100791221. The reversal of 66100791192 is 29119700166.

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 7 ways as a sum of consecutive naturals, for example, 6169984 + ... + 6180687.

It is an arithmetic number, because the mean of its divisors is an integer number (5187282240).

Almost surely, 2^66100791192 is an apocalyptic number.

It is an amenable number.

66100791192 is an abundant number, since it is smaller than the sum of its proper divisors (99892240488).

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

66100791192 is a wasteful number, since it uses less digits than its factorization.

66100791192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12350903 (or 12350899 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 42.

The spelling of 66100791192 in words is "sixty-six billion, one hundred million, seven hundred ninety-one thousand, one hundred ninety-two".