166810455 has 96 divisors (see below), whose sum is σ = 349332480. Its totient is φ = 75297600.

The previous prime is 166810403. The next prime is 166810499. The reversal of 166810455 is 554018661.

It is not a de Polignac number, because 166810455 - 2⁸ = 166810199 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 998782 + ... + 998948.

It is an arithmetic number, because the mean of its divisors is an integer number (3638880).

Almost surely, 2^166810455 is an apocalyptic number.

166810455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

166810455 is an abundant number, since it is smaller than the sum of its proper divisors (182522025).

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

166810455 is a wasteful number, since it uses less digits than its factorization.

166810455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 166810455 is about 12915.5121849658. The cubic root of 166810455 is about 550.4794221978.

The spelling of 166810455 in words is "one hundred sixty-six million, eight hundred ten thousand, four hundred fifty-five".