11441257155557 has 2 divisors, whose sum is σ = 11441257155558. Its totient is φ = 11441257155556.

The previous prime is 11441257155533. The next prime is 11441257155619. The reversal of 11441257155557 is 75555175214411.

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., 9139925679361 + 2301331476196 = 3023231^2 + 1517014^2 .

It is a cyclic number.

It is not a de Polignac number, because 11441257155557 - 2¹⁸ = 11441256893413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11441257155499 and 11441257155508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11441257155257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5720628577778 + 5720628577779.

It is an arithmetic number, because the mean of its divisors is an integer number (5720628577779).

Almost surely, 2^{11441257155557} is an apocalyptic number.

It is an amenable number.

11441257155557 is a deficient number, since it is larger than the sum of its proper divisors (1).

11441257155557 is an equidigital number, since it uses as much as digits as its factorization.

11441257155557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4900000, while the sum is 53.

The spelling of 11441257155557 in words is "eleven trillion, four hundred forty-one billion, two hundred fifty-seven million, one hundred fifty-five thousand, five hundred fifty-seven".