166493724 has 24 divisors (see below), whose sum is σ = 392852880. Its totient is φ = 54873984.

The previous prime is 166493707. The next prime is 166493731. The reversal of 166493724 is 427394661.

166493724 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 76879 + ... + 79014.

It is an arithmetic number, because the mean of its divisors is an integer number (16368870).

Almost surely, 2^166493724 is an apocalyptic number.

It is an amenable number.

166493724 is an abundant number, since it is smaller than the sum of its proper divisors (226359156).

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

166493724 is a wasteful number, since it uses less digits than its factorization.

166493724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155989 (or 155987 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 166493724 is about 12903.2447082120. The cubic root of 166493724 is about 550.1307942380.

The spelling of 166493724 in words is "one hundred sixty-six million, four hundred ninety-three thousand, seven hundred twenty-four".