166344994 has 8 divisors (see below), whose sum is σ = 249905088. Its totient is φ = 83043300.

The previous prime is 166344953. The next prime is 166345001. The reversal of 166344994 is 499443661.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62982 + ... + 65569.

It is an arithmetic number, because the mean of its divisors is an integer number (31238136).

Almost surely, 2^166344994 is an apocalyptic number.

166344994 is a deficient number, since it is larger than the sum of its proper divisors (83560094).

166344994 is a wasteful number, since it uses less digits than its factorization.

166344994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129200.

The product of its digits is 559872, while the sum is 46.

The square root of 166344994 is about 12897.4801414850. The cubic root of 166344994 is about 549.9669335492.

The spelling of 166344994 in words is "one hundred sixty-six million, three hundred forty-four thousand, nine hundred ninety-four".