13662120413 has 2 divisors, whose sum is σ = 13662120414. Its totient is φ = 13662120412.

The previous prime is 13662120379. The next prime is 13662120467. The reversal of 13662120413 is 31402126631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13295704249 + 366416164 = 115307^2 + 19142^2 .

It is a cyclic number.

It is not a de Polignac number, because 13662120413 - 2⁶ = 13662120349 is a prime.

It is a super-2 number, since 2×13662120413² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13662122413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6831060206 + 6831060207.

It is an arithmetic number, because the mean of its divisors is an integer number (6831060207).

Almost surely, 2^13662120413 is an apocalyptic number.

It is an amenable number.

13662120413 is a deficient number, since it is larger than the sum of its proper divisors (1).

13662120413 is an equidigital number, since it uses as much as digits as its factorization.

13662120413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 13662120413 in words is "thirteen billion, six hundred sixty-two million, one hundred twenty thousand, four hundred thirteen".