166125455 has 16 divisors (see below), whose sum is σ = 210470400. Its totient is φ = 125529120.

The previous prime is 166125437. The next prime is 166125461. The reversal of 166125455 is 554521661.

It is not a de Polignac number, because 166125455 - 2¹⁶ = 166059919 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31670 + ... + 36540.

It is an arithmetic number, because the mean of its divisors is an integer number (13154400).

Almost surely, 2^166125455 is an apocalyptic number.

166125455 is a deficient number, since it is larger than the sum of its proper divisors (44344945).

166125455 is a wasteful number, since it uses less digits than its factorization.

166125455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5254.

The product of its digits is 36000, while the sum is 35.

The square root of 166125455 is about 12888.9664054182. The cubic root of 166125455 is about 549.7248816884.

The spelling of 166125455 in words is "one hundred sixty-six million, one hundred twenty-five thousand, four hundred fifty-five".