166945494 has 16 divisors (see below), whose sum is σ = 334507968. Its totient is φ = 55545672.

The previous prime is 166945463. The next prime is 166945501. The reversal of 166945494 is 494549661.

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, 22152 + ... + 28715.

It is an arithmetic number, because the mean of its divisors is an integer number (20906748).

Almost surely, 2^166945494 is an apocalyptic number.

166945494 is an abundant number, since it is smaller than the sum of its proper divisors (167562474).

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

166945494 is a wasteful number, since it uses less digits than its factorization.

166945494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51419.

The product of its digits is 933120, while the sum is 48.

The square root of 166945494 is about 12920.7389107589. The cubic root of 166945494 is about 550.6279263597.

The spelling of 166945494 in words is "one hundred sixty-six million, nine hundred forty-five thousand, four hundred ninety-four".