11568987785701 has 2 divisors, whose sum is σ = 11568987785702. Its totient is φ = 11568987785700.

The previous prime is 11568987785681. The next prime is 11568987785857. The reversal of 11568987785701 is 10758778986511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9272944612801 + 2296043172900 = 3045151^2 + 1515270^2 .

It is a cyclic number.

It is not a de Polignac number, because 11568987785701 - 2²⁵ = 11568954231269 is a prime.

It is a super-2 number, since 2×11568987785701² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11568987785401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5784493892850 + 5784493892851.

It is an arithmetic number, because the mean of its divisors is an integer number (5784493892851).

Almost surely, 2^{11568987785701} is an apocalyptic number.

It is an amenable number.

11568987785701 is a deficient number, since it is larger than the sum of its proper divisors (1).

11568987785701 is an equidigital number, since it uses as much as digits as its factorization.

11568987785701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 237081600, while the sum is 73.

The spelling of 11568987785701 in words is "eleven trillion, five hundred sixty-eight billion, nine hundred eighty-seven million, seven hundred eighty-five thousand, seven hundred one".