166939094 has 16 divisors (see below), whose sum is σ = 287165088. Its totient is φ = 71299392.

The previous prime is 166939093. The next prime is 166939103. The reversal of 166939094 is 490939661.

It is a super-2 number, since 2×166939094² = 55737322211081672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166939093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16247 + ... + 24450.

It is an arithmetic number, because the mean of its divisors is an integer number (17947818).

Almost surely, 2^166939094 is an apocalyptic number.

166939094 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

166939094 is a deficient number, since it is larger than the sum of its proper divisors (120225994).

166939094 is a wasteful number, since it uses less digits than its factorization.

166939094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40999.

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 166939094 is about 12920.4912445309. The cubic root of 166939094 is about 550.6208900037.

The spelling of 166939094 in words is "one hundred sixty-six million, nine hundred thirty-nine thousand, ninety-four".