11656589057593 has 2 divisors, whose sum is σ = 11656589057594. Its totient is φ = 11656589057592.

The previous prime is 11656589057549. The next prime is 11656589057623. The reversal of 11656589057593 is 39575098565611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11650125379984 + 6463677609 = 3413228^2 + 80397^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11656589057593 is a prime.

It is not a weakly prime, because it can be changed into another prime (11656589057293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5828294528796 + 5828294528797.

It is an arithmetic number, because the mean of its divisors is an integer number (5828294528797).

Almost surely, 2^{11656589057593} is an apocalyptic number.

It is an amenable number.

11656589057593 is a deficient number, since it is larger than the sum of its proper divisors (1).

11656589057593 is an equidigital number, since it uses as much as digits as its factorization.

11656589057593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 306180000, while the sum is 70.

The spelling of 11656589057593 in words is "eleven trillion, six hundred fifty-six billion, five hundred eighty-nine million, fifty-seven thousand, five hundred ninety-three".