16166955 has 32 divisors (see below), whose sum is σ = 29952000. Its totient is φ = 7293312.

The previous prime is 16166933. The next prime is 16166957. The reversal of 16166955 is 55966161.

It is not a de Polignac number, because 16166955 - 2⁷ = 16166827 is a prime.

It is a super-2 number, since 2×16166955² = 522740867944050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16166957) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 7321 + ... + 9269.

It is an arithmetic number, because the mean of its divisors is an integer number (936000).

Almost surely, 2^16166955 is an apocalyptic number.

16166955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16166955 is a deficient number, since it is larger than the sum of its proper divisors (13785045).

16166955 is a wasteful number, since it uses less digits than its factorization.

16166955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043.

The product of its digits is 48600, while the sum is 39.

The square root of 16166955 is about 4020.8152158486. The cubic root of 16166955 is about 252.8576378334.

The spelling of 16166955 in words is "sixteen million, one hundred sixty-six thousand, nine hundred fifty-five".