2166163625313 has 8 divisors (see below), whose sum is σ = 3209131296800. Its totient is φ = 1444109083524.

The previous prime is 2166163625299. The next prime is 2166163625317. The reversal of 2166163625313 is 3135263616612.

2166163625313 is a `hidden beast` number, since 2 + 1 + 6 + 6 + 1 + 6 + 3 + 625 + 3 + 13 = 666.

It is not a de Polignac number, because 2166163625313 - 2⁵ = 2166163625281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2166163625317) 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, 40114141183 + ... + 40114141236.

It is an arithmetic number, because the mean of its divisors is an integer number (401141412100).

Almost surely, 2^{2166163625313} is an apocalyptic number.

It is an amenable number.

2166163625313 is a deficient number, since it is larger than the sum of its proper divisors (1042967671487).

2166163625313 is an equidigital number, since it uses as much as digits as its factorization.

2166163625313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80228282428 (or 80228282422 counting only the distinct ones).

The product of its digits is 699840, while the sum is 45.

The spelling of 2166163625313 in words is "two trillion, one hundred sixty-six billion, one hundred sixty-three million, six hundred twenty-five thousand, three hundred thirteen".