166594055 has 8 divisors (see below), whose sum is σ = 201372912. Its totient is φ = 132301888.

The previous prime is 166594049. The next prime is 166594063. The reversal of 166594055 is 550495661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166594055 - 2⁴ = 166594039 is a prime.

It is a super-2 number, since 2×166594055² = 55507158322686050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120917 + ... + 122286.

It is an arithmetic number, because the mean of its divisors is an integer number (25171614).

Almost surely, 2^166594055 is an apocalyptic number.

166594055 is a deficient number, since it is larger than the sum of its proper divisors (34778857).

166594055 is a wasteful number, since it uses less digits than its factorization.

166594055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243345.

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 166594055 is about 12907.1319432320. The cubic root of 166594055 is about 550.2412770599.

The spelling of 166594055 in words is "one hundred sixty-six million, five hundred ninety-four thousand, fifty-five".