166454454 has 32 divisors (see below), whose sum is σ = 338647680. Its totient is φ = 54533952.

The previous prime is 166454447. The next prime is 166454467. The reversal of 166454454 is 454454661.

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, 183069 + ... + 183975.

It is an arithmetic number, because the mean of its divisors is an integer number (10582740).

Almost surely, 2^166454454 is an apocalyptic number.

166454454 is an abundant number, since it is smaller than the sum of its proper divisors (172193226).

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

166454454 is a wasteful number, since it uses less digits than its factorization.

166454454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404.

The product of its digits is 230400, while the sum is 39.

The square root of 166454454 is about 12901.7229082011. The cubic root of 166454454 is about 550.0875386836.

The spelling of 166454454 in words is "one hundred sixty-six million, four hundred fifty-four thousand, four hundred fifty-four".