166562117700 has 144 divisors (see below), whose sum is σ = 543859565760. Its totient is φ = 38986304000.

The previous prime is 166562117699. The next prime is 166562117737. The reversal of 166562117700 is 7711265661.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 774531 + ... + 965930.

It is an arithmetic number, because the mean of its divisors is an integer number (3776802540).

Almost surely, 2^166562117700 is an apocalyptic number.

166562117700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166562117700 is an abundant number, since it is smaller than the sum of its proper divisors (377297448060).

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

166562117700 is a wasteful number, since it uses less digits than its factorization.

166562117700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740518 (or 1740511 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 42.

The spelling of 166562117700 in words is "one hundred sixty-six billion, five hundred sixty-two million, one hundred seventeen thousand, seven hundred".