12553266235511 has 2 divisors, whose sum is σ = 12553266235512. Its totient is φ = 12553266235510.

The previous prime is 12553266235507. The next prime is 12553266235541. The reversal of 12553266235511 is 11553266235521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12553266235511 - 2² = 12553266235507 is a prime.

It is a super-2 number, since 2×12553266235511² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12553266235541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6276633117755 + 6276633117756.

It is an arithmetic number, because the mean of its divisors is an integer number (6276633117756).

Almost surely, 2^{12553266235511} is an apocalyptic number.

12553266235511 is a deficient number, since it is larger than the sum of its proper divisors (1).

12553266235511 is an equidigital number, since it uses as much as digits as its factorization.

12553266235511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620000, while the sum is 47.

The spelling of 12553266235511 in words is "twelve trillion, five hundred fifty-three billion, two hundred sixty-six million, two hundred thirty-five thousand, five hundred eleven".