66971625922 has 16 divisors (see below), whose sum is σ = 101410175232. Its totient is φ = 33168320080.

The previous prime is 66971625913. The next prime is 66971625947. The reversal of 66971625922 is 22952617966.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1982223 + ... + 2015725.

It is an arithmetic number, because the mean of its divisors is an integer number (6338135952).

Almost surely, 2^66971625922 is an apocalyptic number.

66971625922 is a deficient number, since it is larger than the sum of its proper divisors (34438549310).

66971625922 is a wasteful number, since it uses less digits than its factorization.

66971625922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42953.

The product of its digits is 4898880, while the sum is 55.

The spelling of 66971625922 in words is "sixty-six billion, nine hundred seventy-one million, six hundred twenty-five thousand, nine hundred twenty-two".