188966572920 has 128 divisors (see below), whose sum is σ = 666940910400. Its totient is φ = 47426899968.

The previous prime is 188966572897. The next prime is 188966572997. The reversal of 188966572920 is 29275669881.

It is a super-2 number, since 2×188966572920² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5127789 + ... + 5164508.

Almost surely, 2^188966572920 is an apocalyptic number.

188966572920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

188966572920 is an abundant number, since it is smaller than the sum of its proper divisors (477974337480).

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

188966572920 is a wasteful number, since it uses less digits than its factorization.

188966572920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10292334 (or 10292324 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 188966572920 in words is "one hundred eighty-eight billion, nine hundred sixty-six million, five hundred seventy-two thousand, nine hundred twenty".