166339808 has 12 divisors (see below), whose sum is σ = 327481560. Its totient is φ = 83169888.

The previous prime is 166339807. The next prime is 166339847. The reversal of 166339808 is 808933661.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166339801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2599028 + ... + 2599091.

It is an arithmetic number, because the mean of its divisors is an integer number (27290130).

Almost surely, 2^166339808 is an apocalyptic number.

It is an amenable number.

166339808 is a deficient number, since it is larger than the sum of its proper divisors (161141752).

166339808 is an equidigital number, since it uses as much as digits as its factorization.

166339808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5198129 (or 5198121 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 166339808 is about 12897.2790928940. The cubic root of 166339808 is about 549.9612182021.

The spelling of 166339808 in words is "one hundred sixty-six million, three hundred thirty-nine thousand, eight hundred eight".