166329806 has 8 divisors (see below), whose sum is σ = 249556944. Its totient is φ = 83144160.

The previous prime is 166329803. The next prime is 166329809. The reversal of 166329806 is 608923661.

It is an interprime number because it is at equal distance from previous prime (166329803) and next prime (166329809).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166329803) 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 3 ways as a sum of consecutive naturals, for example, 3206 + ... + 18518.

It is an arithmetic number, because the mean of its divisors is an integer number (31194618).

Almost surely, 2^166329806 is an apocalyptic number.

166329806 is a deficient number, since it is larger than the sum of its proper divisors (83227138).

166329806 is a wasteful number, since it uses less digits than its factorization.

166329806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20746.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 166329806 is about 12896.8913308595. The cubic root of 166329806 is about 549.9501949391.

The spelling of 166329806 in words is "one hundred sixty-six million, three hundred twenty-nine thousand, eight hundred six".