12133554569 has 2 divisors, whose sum is σ = 12133554570. Its totient is φ = 12133554568.

The previous prime is 12133554493. The next prime is 12133554611. The reversal of 12133554569 is 96545533121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9601452169 + 2532102400 = 97987^2 + 50320^2 .

It is a cyclic number.

It is not a de Polignac number, because 12133554569 - 2²⁸ = 11865119113 is a prime.

It is a super-2 number, since 2×12133554569² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12133551569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6066777284 + 6066777285.

It is an arithmetic number, because the mean of its divisors is an integer number (6066777285).

Almost surely, 2^12133554569 is an apocalyptic number.

It is an amenable number.

12133554569 is a deficient number, since it is larger than the sum of its proper divisors (1).

12133554569 is an equidigital number, since it uses as much as digits as its factorization.

12133554569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486000, while the sum is 44.

The spelling of 12133554569 in words is "twelve billion, one hundred thirty-three million, five hundred fifty-four thousand, five hundred sixty-nine".