166126357 has 8 divisors (see below), whose sum is σ = 167619672. Its totient is φ = 164640000.

The previous prime is 166126351. The next prime is 166126369. The reversal of 166126357 is 753621661.

It can be written as a sum of positive squares in 4 ways, for example, as 89283601 + 76842756 = 9449^2 + 8766^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166126357 - 2³ = 166126349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166126351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53857 + ... + 56857.

It is an arithmetic number, because the mean of its divisors is an integer number (20952459).

Almost surely, 2^166126357 is an apocalyptic number.

It is an amenable number.

166126357 is a deficient number, since it is larger than the sum of its proper divisors (1493315).

166126357 is a wasteful number, since it uses less digits than its factorization.

166126357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3479.

The product of its digits is 45360, while the sum is 37.

The square root of 166126357 is about 12889.0013965396. The cubic root of 166126357 is about 549.7258766211.

The spelling of 166126357 in words is "one hundred sixty-six million, one hundred twenty-six thousand, three hundred fifty-seven".