166630455 has 24 divisors (see below), whose sum is σ = 293726160. Its totient is φ = 87361920.

The previous prime is 166630439. The next prime is 166630483. The reversal of 166630455 is 554036661.

It is not a de Polignac number, because 166630455 - 2⁴ = 166630439 is a prime.

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, 28726 + ... + 34035.

It is an arithmetic number, because the mean of its divisors is an integer number (12238590).

Almost surely, 2^166630455 is an apocalyptic number.

166630455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

166630455 is a deficient number, since it is larger than the sum of its proper divisors (127095705).

166630455 is a wasteful number, since it uses less digits than its factorization.

166630455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62831 (or 62828 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 166630455 is about 12908.5419393516. The cubic root of 166630455 is about 550.2813491659.

The spelling of 166630455 in words is "one hundred sixty-six million, six hundred thirty thousand, four hundred fifty-five".