166150657 has 8 divisors (see below), whose sum is σ = 172184040. Its totient is φ = 160137600.

The previous prime is 166150651. The next prime is 166150681. The reversal of 166150657 is 756051661.

It can be written as a sum of positive squares in 4 ways, for example, as 26532801 + 139617856 = 5151^2 + 11816^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166150657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166150651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12663 + ... + 22195.

It is an arithmetic number, because the mean of its divisors is an integer number (21523005).

Almost surely, 2^166150657 is an apocalyptic number.

It is an amenable number.

166150657 is a deficient number, since it is larger than the sum of its proper divisors (6033383).

166150657 is an equidigital number, since it uses as much as digits as its factorization.

166150657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10163.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 166150657 is about 12889.9440262555. The cubic root of 166150657 is about 549.7526788853.

The spelling of 166150657 in words is "one hundred sixty-six million, one hundred fifty thousand, six hundred fifty-seven".