166668342 has 32 divisors (see below), whose sum is σ = 354844800. Its totient is φ = 52037568.

The previous prime is 166668331. The next prime is 166668343. The reversal of 166668342 is 243866661.

It is a junction number, because it is equal to n+sod(n) for n = 166668294 and 166668303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166668343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1933 + ... + 18359.

It is an arithmetic number, because the mean of its divisors is an integer number (11088900).

Almost surely, 2^166668342 is an apocalyptic number.

166668342 is an abundant number, since it is smaller than the sum of its proper divisors (188176458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166668342 is a wasteful number, since it uses less digits than its factorization.

166668342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16540.

The product of its digits is 248832, while the sum is 42.

The square root of 166668342 is about 12910.0093725760. The cubic root of 166668342 is about 550.3230520859.

The spelling of 166668342 in words is "one hundred sixty-six million, six hundred sixty-eight thousand, three hundred forty-two".