166742616 has 16 divisors (see below), whose sum is σ = 416856600. Its totient is φ = 55580864.

The previous prime is 166742591. The next prime is 166742621. The reversal of 166742616 is 616247661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3473781 + ... + 3473828.

Almost surely, 2^166742616 is an apocalyptic number.

It is an amenable number.

166742616 is an abundant number, since it is smaller than the sum of its proper divisors (250113984).

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

166742616 is a wasteful number, since it uses less digits than its factorization.

166742616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6947618 (or 6947614 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 166742616 is about 12912.8856573579. The cubic root of 166742616 is about 550.4047885124.

The spelling of 166742616 in words is "one hundred sixty-six million, seven hundred forty-two thousand, six hundred sixteen".