66149168 has 10 divisors (see below), whose sum is σ = 128164044. Its totient is φ = 33074576.

The previous prime is 66149147. The next prime is 66149177. The reversal of 66149168 is 86194166.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2067146 + ... + 2067177.

Almost surely, 2^66149168 is an apocalyptic number.

It is an amenable number.

66149168 is a deficient number, since it is larger than the sum of its proper divisors (62014876).

66149168 is a wasteful number, since it uses less digits than its factorization.

66149168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4134331 (or 4134325 counting only the distinct ones).

The product of its digits is 62208, while the sum is 41.

The square root of 66149168 is about 8133.2138789042. The cubic root of 66149168 is about 404.4282293901.

The spelling of 66149168 in words is "sixty-six million, one hundred forty-nine thousand, one hundred sixty-eight".