166456101 has 16 divisors (see below), whose sum is σ = 254019584. Its totient is φ = 94978224.

The previous prime is 166456057. The next prime is 166456117. The reversal of 166456101 is 101654661.

It is not a de Polignac number, because 166456101 - 2¹⁰ = 166455077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166456501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9816 + ... + 20718.

It is an arithmetic number, because the mean of its divisors is an integer number (15876224).

Almost surely, 2^166456101 is an apocalyptic number.

It is an amenable number.

166456101 is a deficient number, since it is larger than the sum of its proper divisors (87563483).

166456101 is a wasteful number, since it uses less digits than its factorization.

166456101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11640.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 166456101 is about 12901.7867367276. The cubic root of 166456101 is about 550.0893529760.

The spelling of 166456101 in words is "one hundred sixty-six million, four hundred fifty-six thousand, one hundred one".