13358233561 has 2 divisors, whose sum is σ = 13358233562. Its totient is φ = 13358233560.

The previous prime is 13358233523. The next prime is 13358233673. The reversal of 13358233561 is 16533285331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12859560000 + 498673561 = 113400^2 + 22331^2 .

It is a cyclic number.

It is not a de Polignac number, because 13358233561 - 2¹⁹ = 13357709273 is a prime.

It is not a weakly prime, because it can be changed into another prime (13353233561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6679116780 + 6679116781.

It is an arithmetic number, because the mean of its divisors is an integer number (6679116781).

Almost surely, 2^13358233561 is an apocalyptic number.

It is an amenable number.

13358233561 is a deficient number, since it is larger than the sum of its proper divisors (1).

13358233561 is an equidigital number, since it uses as much as digits as its factorization.

13358233561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 40.

The spelling of 13358233561 in words is "thirteen billion, three hundred fifty-eight million, two hundred thirty-three thousand, five hundred sixty-one".