166676172 has 24 divisors (see below), whose sum is σ = 418827696. Its totient is φ = 51284928.

The previous prime is 166676171. The next prime is 166676219. The reversal of 166676172 is 271676661.

166676172 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (166676171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 534063 + ... + 534374.

It is an arithmetic number, because the mean of its divisors is an integer number (17451154).

Almost surely, 2^166676172 is an apocalyptic number.

166676172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166676172 is an abundant number, since it is smaller than the sum of its proper divisors (252151524).

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

166676172 is a wasteful number, since it uses less digits than its factorization.

166676172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068457 (or 1068455 counting only the distinct ones).

The product of its digits is 127008, while the sum is 42.

The square root of 166676172 is about 12910.3126220863. The cubic root of 166676172 is about 550.3316699233.

The spelling of 166676172 in words is "one hundred sixty-six million, six hundred seventy-six thousand, one hundred seventy-two".