166883855 has 8 divisors (see below), whose sum is σ = 200373072. Its totient is φ = 133432128.

The previous prime is 166883833. The next prime is 166883923. The reversal of 166883855 is 558388661.

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 166883855 - 2⁸ = 166883599 is a prime.

It is a super-2 number, since 2×166883855² = 55700442119322050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1592 + ... + 18338.

It is an arithmetic number, because the mean of its divisors is an integer number (25046634).

Almost surely, 2^166883855 is an apocalyptic number.

166883855 is a deficient number, since it is larger than the sum of its proper divisors (33489217).

166883855 is a wasteful number, since it uses less digits than its factorization.

166883855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18745.

The product of its digits is 1382400, while the sum is 50.

The square root of 166883855 is about 12918.3534167478. The cubic root of 166883855 is about 550.5601510799.

The spelling of 166883855 in words is "one hundred sixty-six million, eight hundred eighty-three thousand, eight hundred fifty-five".