13361642191 has 2 divisors, whose sum is σ = 13361642192. Its totient is φ = 13361642190.

The previous prime is 13361642183. The next prime is 13361642293. The reversal of 13361642191 is 19124616331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13361642191 - 2³ = 13361642183 is a prime.

It is a super-2 number, since 2×13361642191² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13361642191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13361642171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6680821095 + 6680821096.

It is an arithmetic number, because the mean of its divisors is an integer number (6680821096).

Almost surely, 2^13361642191 is an apocalyptic number.

13361642191 is a deficient number, since it is larger than the sum of its proper divisors (1).

13361642191 is an equidigital number, since it uses as much as digits as its factorization.

13361642191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 37.

The spelling of 13361642191 in words is "thirteen billion, three hundred sixty-one million, six hundred forty-two thousand, one hundred ninety-one".