166640113136313 has 6 divisors (see below), whose sum is σ = 240702385641354. Its totient is φ = 111093408757536.

The previous prime is 166640113136297. The next prime is 166640113136317. The reversal of 166640113136313 is 313631311046661.

It can be written as a sum of positive squares in only one way, i.e., 126292374288144 + 40347738848169 = 11237988^2 + 6351987^2 .

It is not a de Polignac number, because 166640113136313 - 2⁴ = 166640113136297 is a prime.

It is a super-3 number, since 3×166640113136313³ (a number of 44 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (166640113136317) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9257784063120 + ... + 9257784063137.

It is an arithmetic number, because the mean of its divisors is an integer number (40117064273559).

Almost surely, 2^{166640113136313} is an apocalyptic number.

It is an amenable number.

166640113136313 is a deficient number, since it is larger than the sum of its proper divisors (74062272505041).

166640113136313 is a wasteful number, since it uses less digits than its factorization.

166640113136313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18515568126263 (or 18515568126260 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The spelling of 166640113136313 in words is "one hundred sixty-six trillion, six hundred forty billion, one hundred thirteen million, one hundred thirty-six thousand, three hundred thirteen".