188013954816 has 90 divisors (see below), whose sum is σ = 560623655592. Its totient is φ = 62671311360.

The previous prime is 188013954797. The next prime is 188013954823. The reversal of 188013954816 is 618459310881.

It is a happy number.

188013954816 is a `hidden beast` number, since 1 + 8 + 80 + 1 + 3 + 9 + 548 + 16 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4512780 + ... + 4554251.

Almost surely, 2^188013954816 is an apocalyptic number.

188013954816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

188013954816 is an abundant number, since it is smaller than the sum of its proper divisors (372609700776).

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

188013954816 is an frugal number, since it uses more digits than its factorization.

188013954816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9067059 (or 9067036 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 54.

The spelling of 188013954816 in words is "one hundred eighty-eight billion, thirteen million, nine hundred fifty-four thousand, eight hundred sixteen".