11557710959 has 2 divisors, whose sum is σ = 11557710960. Its totient is φ = 11557710958.

The previous prime is 11557710937. The next prime is 11557710973. The reversal of 11557710959 is 95901775511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11557710959 - 2¹⁶ = 11557645423 is a prime.

It is a super-2 number, since 2×11557710959² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11557710919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5778855479 + 5778855480.

It is an arithmetic number, because the mean of its divisors is an integer number (5778855480).

Almost surely, 2^11557710959 is an apocalyptic number.

11557710959 is a deficient number, since it is larger than the sum of its proper divisors (1).

11557710959 is an equidigital number, since it uses as much as digits as its factorization.

11557710959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 496125, while the sum is 50.

The spelling of 11557710959 in words is "eleven billion, five hundred fifty-seven million, seven hundred ten thousand, nine hundred fifty-nine".