166249942 has 8 divisors (see below), whose sum is σ = 249429816. Its totient is φ = 83106672.

The previous prime is 166249933. The next prime is 166250027. The reversal of 166249942 is 249942661.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11793 + ... + 21715.

It is an arithmetic number, because the mean of its divisors is an integer number (31178727).

Almost surely, 2^166249942 is an apocalyptic number.

166249942 is a deficient number, since it is larger than the sum of its proper divisors (83179874).

166249942 is an equidigital number, since it uses as much as digits as its factorization.

166249942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18302.

The product of its digits is 186624, while the sum is 43.

The square root of 166249942 is about 12893.7947090839. The cubic root of 166249942 is about 549.8621604992.

The spelling of 166249942 in words is "one hundred sixty-six million, two hundred forty-nine thousand, nine hundred forty-two".