11320757775565 has 16 divisors (see below), whose sum is σ = 15525717806592. Its totient is φ = 7762751760384.

The previous prime is 11320757775557. The next prime is 11320757775599. The reversal of 11320757775565 is 56557775702311.

It is a cyclic number.

It is not a de Polignac number, because 11320757775565 - 2³ = 11320757775557 is a prime.

It is a super-2 number, since 2×11320757775565² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4414012 + ... + 6490378.

It is an arithmetic number, because the mean of its divisors is an integer number (970357362912).

Almost surely, 2^{11320757775565} is an apocalyptic number.

It is an amenable number.

11320757775565 is a deficient number, since it is larger than the sum of its proper divisors (4204960031027).

11320757775565 is a wasteful number, since it uses less digits than its factorization.

11320757775565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2232156.

The product of its (nonzero) digits is 54022500, while the sum is 61.

The spelling of 11320757775565 in words is "eleven trillion, three hundred twenty billion, seven hundred fifty-seven million, seven hundred seventy-five thousand, five hundred sixty-five".