166672120 has 64 divisors (see below), whose sum is σ = 390297600. Its totient is φ = 63987840.

The previous prime is 166672117. The next prime is 166672141. The reversal of 166672120 is 21276661.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171877 + ... + 172843.

It is an arithmetic number, because the mean of its divisors is an integer number (6098400).

Almost surely, 2^166672120 is an apocalyptic number.

166672120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166672120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195148800).

166672120 is an abundant number, since it is smaller than the sum of its proper divisors (223625480).

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

166672120 is a wasteful number, since it uses less digits than its factorization.

166672120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148 (or 1144 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 166672120 is about 12910.1556923222. The cubic root of 166672120 is about 550.3272102536.

The spelling of 166672120 in words is "one hundred sixty-six million, six hundred seventy-two thousand, one hundred twenty".