166053874 has 16 divisors (see below), whose sum is σ = 291284928. Its totient is φ = 69510672.

The previous prime is 166053871. The next prime is 166053889. The reversal of 166053874 is 478350661.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (166053871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137317 + ... + 138520.

It is an arithmetic number, because the mean of its divisors is an integer number (18205308).

Almost surely, 2^166053874 is an apocalyptic number.

166053874 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

166053874 is a deficient number, since it is larger than the sum of its proper divisors (125231054).

166053874 is a wasteful number, since it uses less digits than its factorization.

166053874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275889.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 166053874 is about 12886.1892737923. The cubic root of 166053874 is about 549.6459142400.

The spelling of 166053874 in words is "one hundred sixty-six million, fifty-three thousand, eight hundred seventy-four".