13145732055649 has 2 divisors, whose sum is σ = 13145732055650. Its totient is φ = 13145732055648.

The previous prime is 13145732055593. The next prime is 13145732055679. The reversal of 13145732055649 is 94655023754131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8604600889600 + 4541131166049 = 2933360^2 + 2130993^2 .

It is a cyclic number.

It is not a de Polignac number, because 13145732055649 - 2³⁷ = 13008293102177 is a prime.

It is a super-2 number, since 2×13145732055649² (a number of 27 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 13145732055649.

It is not a weakly prime, because it can be changed into another prime (13145732055679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6572866027824 + 6572866027825.

It is an arithmetic number, because the mean of its divisors is an integer number (6572866027825).

Almost surely, 2^{13145732055649} is an apocalyptic number.

It is an amenable number.

13145732055649 is a deficient number, since it is larger than the sum of its proper divisors (1).

13145732055649 is an equidigital number, since it uses as much as digits as its factorization.

13145732055649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608000, while the sum is 55.

The spelling of 13145732055649 in words is "thirteen trillion, one hundred forty-five billion, seven hundred thirty-two million, fifty-five thousand, six hundred forty-nine".