16677325645613 has 2 divisors, whose sum is σ = 16677325645614. Its totient is φ = 16677325645612.

The previous prime is 16677325645597. The next prime is 16677325645681. The reversal of 16677325645613 is 31654652377661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11025042878404 + 5652282767209 = 3320398^2 + 2377453^2 .

It is a cyclic number.

It is not a de Polignac number, because 16677325645613 - 2⁴ = 16677325645597 is a prime.

It is a super-2 number, since 2×16677325645613² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16677325644613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8338662822806 + 8338662822807.

It is an arithmetic number, because the mean of its divisors is an integer number (8338662822807).

Almost surely, 2^{16677325645613} is an apocalyptic number.

It is an amenable number.

16677325645613 is a deficient number, since it is larger than the sum of its proper divisors (1).

16677325645613 is an equidigital number, since it uses as much as digits as its factorization.

16677325645613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 114307200, while the sum is 62.

The spelling of 16677325645613 in words is "sixteen trillion, six hundred seventy-seven billion, three hundred twenty-five million, six hundred forty-five thousand, six hundred thirteen".