66572389392 has 80 divisors (see below), whose sum is σ = 186869944320. Its totient is φ = 20344694400.

The previous prime is 66572389381. The next prime is 66572389439. The reversal of 66572389392 is 29398327566.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1149084 + ... + 1205627.

It is an arithmetic number, because the mean of its divisors is an integer number (2335874304).

Almost surely, 2^66572389392 is an apocalyptic number.

66572389392 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

66572389392 is an abundant number, since it is smaller than the sum of its proper divisors (120297554928).

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

66572389392 is a wasteful number, since it uses less digits than its factorization.

66572389392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354772 (or 2354766 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 60.

The spelling of 66572389392 in words is "sixty-six billion, five hundred seventy-two million, three hundred eighty-nine thousand, three hundred ninety-two".