166070457 has 18 divisors (see below), whose sum is σ = 279044298. Its totient is φ = 94897152.

The previous prime is 166070453. The next prime is 166070473. The reversal of 166070457 is 754070661.

166070457 is a `hidden beast` number, since 1 + 6 + 607 + 0 + 45 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 159289641 + 6780816 = 12621^2 + 2604^2 .

It is not a de Polignac number, because 166070457 - 2² = 166070453 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166070453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 187848 + ... + 188729.

It is an arithmetic number, because the mean of its divisors is an integer number (15502461).

Almost surely, 2^166070457 is an apocalyptic number.

It is an amenable number.

166070457 is a deficient number, since it is larger than the sum of its proper divisors (112973841).

166070457 is a wasteful number, since it uses less digits than its factorization.

166070457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376597 (or 376587 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 166070457 is about 12886.8326985338. The cubic root of 166070457 is about 549.6642104603.

The spelling of 166070457 in words is "one hundred sixty-six million, seventy thousand, four hundred fifty-seven".