11310657557 has 2 divisors, whose sum is σ = 11310657558. Its totient is φ = 11310657556.

The previous prime is 11310657503. The next prime is 11310657641. The reversal of 11310657557 is 75575601311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10287233476 + 1023424081 = 101426^2 + 31991^2 .

It is a cyclic number.

It is not a de Polignac number, because 11310657557 - 2⁶ = 11310657493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11310677557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5655328778 + 5655328779.

It is an arithmetic number, because the mean of its divisors is an integer number (5655328779).

Almost surely, 2^11310657557 is an apocalyptic number.

It is an amenable number.

11310657557 is a deficient number, since it is larger than the sum of its proper divisors (1).

11310657557 is an equidigital number, since it uses as much as digits as its factorization.

11310657557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110250, while the sum is 41.

The spelling of 11310657557 in words is "eleven billion, three hundred ten million, six hundred fifty-seven thousand, five hundred fifty-seven".