166874885660 has 24 divisors (see below), whose sum is σ = 400499725920. Its totient is φ = 57214246464.

The previous prime is 166874885657. The next prime is 166874885707. The reversal of 166874885660 is 66588478661.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 595981595 + ... + 595981874.

It is an arithmetic number, because the mean of its divisors is an integer number (16687488580).

Almost surely, 2^166874885660 is an apocalyptic number.

166874885660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166874885660 is an abundant number, since it is smaller than the sum of its proper divisors (233624840260).

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

166874885660 is a wasteful number, since it uses less digits than its factorization.

166874885660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191963485 (or 1191963483 counting only the distinct ones).

The product of its (nonzero) digits is 92897280, while the sum is 65.

The spelling of 166874885660 in words is "one hundred sixty-six billion, eight hundred seventy-four million, eight hundred eighty-five thousand, six hundred sixty".