166390342 has 8 divisors (see below), whose sum is σ = 258192000. Its totient is φ = 80326344.

The previous prime is 166390333. The next prime is 166390363. The reversal of 166390342 is 243093661.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 166390298 and 166390307.

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, 1434342 + ... + 1434457.

It is an arithmetic number, because the mean of its divisors is an integer number (32274000).

Almost surely, 2^166390342 is an apocalyptic number.

166390342 is a deficient number, since it is larger than the sum of its proper divisors (91801658).

166390342 is a wasteful number, since it uses less digits than its factorization.

166390342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868830.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 166390342 is about 12899.2380395123. The cubic root of 166390342 is about 550.0169052655.

The spelling of 166390342 in words is "one hundred sixty-six million, three hundred ninety thousand, three hundred forty-two".