166868382 has 16 divisors (see below), whose sum is σ = 337962240. Its totient is φ = 54918552.

The previous prime is 166868371. The next prime is 166868399. The reversal of 166868382 is 283868661.

It is a super-2 number, since 2×166868382² = 55690113822595848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175548 + ... + 176495.

It is an arithmetic number, because the mean of its divisors is an integer number (21122640).

Almost surely, 2^166868382 is an apocalyptic number.

166868382 is an abundant number, since it is smaller than the sum of its proper divisors (171093858).

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

166868382 is a wasteful number, since it uses less digits than its factorization.

166868382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352127.

The product of its digits is 663552, while the sum is 48.

The square root of 166868382 is about 12917.7545262325. The cubic root of 166868382 is about 550.5431350929.

The spelling of 166868382 in words is "one hundred sixty-six million, eight hundred sixty-eight thousand, three hundred eighty-two".