166127916 has 12 divisors (see below), whose sum is σ = 387631832. Its totient is φ = 55375968.

The previous prime is 166127911. The next prime is 166127947. The reversal of 166127916 is 619721661.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (166127911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6921985 + ... + 6922008.

Almost surely, 2^166127916 is an apocalyptic number.

It is an amenable number.

166127916 is an abundant number, since it is smaller than the sum of its proper divisors (221503916).

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

166127916 is a wasteful number, since it uses less digits than its factorization.

166127916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13844000 (or 13843998 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 166127916 is about 12889.0618743181. The cubic root of 166127916 is about 549.7275962357.

The spelling of 166127916 in words is "one hundred sixty-six million, one hundred twenty-seven thousand, nine hundred sixteen".