166422460 has 12 divisors (see below), whose sum is σ = 349487208. Its totient is φ = 66568976.

The previous prime is 166422449. The next prime is 166422467. The reversal of 166422460 is 64224661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166422467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4160542 + ... + 4160581.

It is an arithmetic number, because the mean of its divisors is an integer number (29123934).

Almost surely, 2^166422460 is an apocalyptic number.

166422460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166422460 is an abundant number, since it is smaller than the sum of its proper divisors (183064748).

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

166422460 is a wasteful number, since it uses less digits than its factorization.

166422460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8321132 (or 8321130 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 166422460 is about 12900.4829366966. The cubic root of 166422460 is about 550.0522925487.

The spelling of 166422460 in words is "one hundred sixty-six million, four hundred twenty-two thousand, four hundred sixty".