166900439 has 8 divisors (see below), whose sum is σ = 169931520. Its totient is φ = 163876216.

The previous prime is 166900429. The next prime is 166900457. The reversal of 166900439 is 934009661.

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 166900439 - 2²⁴ = 150123223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166900429) 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, 92504 + ... + 94290.

It is an arithmetic number, because the mean of its divisors is an integer number (21241440).

Almost surely, 2^166900439 is an apocalyptic number.

166900439 is a deficient number, since it is larger than the sum of its proper divisors (3031081).

166900439 is a wasteful number, since it uses less digits than its factorization.

166900439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3429.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 166900439 is about 12918.9952782714. The cubic root of 166900439 is about 550.5783876895.

The spelling of 166900439 in words is "one hundred sixty-six million, nine hundred thousand, four hundred thirty-nine".