166028790 has 32 divisors (see below), whose sum is σ = 402345216. Its totient is φ = 43843680.

The previous prime is 166028761. The next prime is 166028831. The reversal of 166028790 is 97820661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23776 + ... + 29955.

It is an arithmetic number, because the mean of its divisors is an integer number (12573288).

Almost surely, 2^166028790 is an apocalyptic number.

166028790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166028790 is an abundant number, since it is smaller than the sum of its proper divisors (236316426).

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

166028790 is a wasteful number, since it uses less digits than its factorization.

166028790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53844.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 166028790 is about 12885.2159469681. The cubic root of 166028790 is about 549.6182364507.

The spelling of 166028790 in words is "one hundred sixty-six million, twenty-eight thousand, seven hundred ninety".