166694079 has 8 divisors (see below), whose sum is σ = 222635952. Its totient is φ = 110940800.

The previous prime is 166694071. The next prime is 166694081. The reversal of 166694079 is 970496661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166694079 - 2³ = 166694071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166694071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45072 + ... + 48629.

It is an arithmetic number, because the mean of its divisors is an integer number (27829494).

Almost surely, 2^166694079 is an apocalyptic number.

166694079 is a deficient number, since it is larger than the sum of its proper divisors (55941873).

166694079 is an equidigital number, since it uses as much as digits as its factorization.

166694079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94297.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 166694079 is about 12911.0061188120. The cubic root of 166694079 is about 550.3513776719.

The spelling of 166694079 in words is "one hundred sixty-six million, six hundred ninety-four thousand, seventy-nine".