166276220 has 48 divisors (see below), whose sum is σ = 400982400. Its totient is φ = 57280320.

The previous prime is 166276189. The next prime is 166276237. The reversal of 166276220 is 22672661.

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, 15710 + ... + 24069.

It is an arithmetic number, because the mean of its divisors is an integer number (8353800).

Almost surely, 2^166276220 is an apocalyptic number.

166276220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166276220 is an abundant number, since it is smaller than the sum of its proper divisors (234706180).

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

166276220 is a wasteful number, since it uses less digits than its factorization.

166276220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39818 (or 39816 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 166276220 is about 12894.8136861298. The cubic root of 166276220 is about 549.8911299662.

The spelling of 166276220 in words is "one hundred sixty-six million, two hundred seventy-six thousand, two hundred twenty".