166170955 has 12 divisors (see below), whose sum is σ = 200674656. Its totient is φ = 132095600.

The previous prime is 166170931. The next prime is 166170997. The reversal of 166170955 is 559071661.

It is not a de Polignac number, because 166170955 - 2⁹ = 166170443 is a prime.

It is a super-2 number, since 2×166170955² = 55225572571224050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181950 + ... + 182860.

It is an arithmetic number, because the mean of its divisors is an integer number (16722888).

Almost surely, 2^166170955 is an apocalyptic number.

166170955 is a deficient number, since it is larger than the sum of its proper divisors (34503701).

166170955 is an frugal number, since it uses more digits than its factorization.

166170955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298 (or 1107 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 166170955 is about 12890.7313601673. The cubic root of 166170955 is about 549.7750650451.

The spelling of 166170955 in words is "one hundred sixty-six million, one hundred seventy thousand, nine hundred fifty-five".