166122351 has 12 divisors (see below), whose sum is σ = 254069712. Its totient is φ = 104233536.

The previous prime is 166122349. The next prime is 166122361. The reversal of 166122351 is 153221661.

166122351 is a `hidden beast` number, since 16 + 612 + 2 + 35 + 1 = 666.

It is not a de Polignac number, because 166122351 - 2¹ = 166122349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166122311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 542731 + ... + 543036.

It is an arithmetic number, because the mean of its divisors is an integer number (21172476).

Almost surely, 2^166122351 is an apocalyptic number.

166122351 is a deficient number, since it is larger than the sum of its proper divisors (87947361).

166122351 is a wasteful number, since it uses less digits than its factorization.

166122351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085790 (or 1085787 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 166122351 is about 12888.8459917869. The cubic root of 166122351 is about 549.7214578569.

The spelling of 166122351 in words is "one hundred sixty-six million, one hundred twenty-two thousand, three hundred fifty-one".