166727955 has 16 divisors (see below), whose sum is σ = 266968224. Its totient is φ = 88853760.

The previous prime is 166727947. The next prime is 166727963. The reversal of 166727955 is 559727661.

It is an interprime number because it is at equal distance from previous prime (166727947) and next prime (166727963).

It is not a de Polignac number, because 166727955 - 2³ = 166727947 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20887 + ... + 27743.

It is an arithmetic number, because the mean of its divisors is an integer number (16685514).

Almost surely, 2^166727955 is an apocalyptic number.

166727955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

166727955 is a deficient number, since it is larger than the sum of its proper divisors (100240269).

166727955 is a wasteful number, since it uses less digits than its factorization.

166727955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8486.

The product of its digits is 793800, while the sum is 48.

The square root of 166727955 is about 12912.3179561224. The cubic root of 166727955 is about 550.3886564215.

The spelling of 166727955 in words is "one hundred sixty-six million, seven hundred twenty-seven thousand, nine hundred fifty-five".