166141156 has 6 divisors (see below), whose sum is σ = 290747030. Its totient is φ = 83070576.

The previous prime is 166141139. The next prime is 166141181. The reversal of 166141156 is 651141661.

It can be written as a sum of positive squares in only one way, i.e., 158357056 + 7784100 = 12584^2 + 2790^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20767641 + ... + 20767648.

Almost surely, 2^166141156 is an apocalyptic number.

It is an amenable number.

166141156 is a deficient number, since it is larger than the sum of its proper divisors (124605874).

166141156 is a wasteful number, since it uses less digits than its factorization.

166141156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41535293 (or 41535291 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 166141156 is about 12889.5754778813. The cubic root of 166141156 is about 549.7421998420.

The spelling of 166141156 in words is "one hundred sixty-six million, one hundred forty-one thousand, one hundred fifty-six".