166276990 has 48 divisors (see below), whose sum is σ = 331808400. Its totient is φ = 59945600.

The previous prime is 166276987. The next prime is 166277021. The reversal of 166276990 is 99672661.

166276990 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 166276990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157986 + ... + 159034.

It is an arithmetic number, because the mean of its divisors is an integer number (6912675).

Almost surely, 2^166276990 is an apocalyptic number.

166276990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166276990 is a deficient number, since it is larger than the sum of its proper divisors (165531410).

166276990 is a wasteful number, since it uses less digits than its factorization.

166276990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209 (or 1198 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 166276990 is about 12894.8435430601. The cubic root of 166276990 is about 549.8919787858.

The spelling of 166276990 in words is "one hundred sixty-six million, two hundred seventy-six thousand, nine hundred ninety".