166663374 has 16 divisors (see below), whose sum is σ = 334560000. Its totient is φ = 55348920.

The previous prime is 166663369. The next prime is 166663403. The reversal of 166663374 is 473366661.

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, 49624 + ... + 52875.

It is an arithmetic number, because the mean of its divisors is an integer number (20910000).

Almost surely, 2^166663374 is an apocalyptic number.

166663374 is an abundant number, since it is smaller than the sum of its proper divisors (167896626).

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

166663374 is a wasteful number, since it uses less digits than its factorization.

166663374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102775.

The product of its digits is 326592, while the sum is 42.

The square root of 166663374 is about 12909.8169622966. The cubic root of 166663374 is about 550.3175840766.

The spelling of 166663374 in words is "one hundred sixty-six million, six hundred sixty-three thousand, three hundred seventy-four".