11164421755765 has 32 divisors (see below), whose sum is σ = 14180409628416. Its totient is φ = 8421358809600.

The previous prime is 11164421755763. The next prime is 11164421755813. The reversal of 11164421755765 is 56755712446111.

It is not a de Polignac number, because 11164421755765 - 2¹ = 11164421755763 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11164421755763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 519409 + ... + 4753801.

It is an arithmetic number, because the mean of its divisors is an integer number (443137800888).

Almost surely, 2^{11164421755765} is an apocalyptic number.

It is an amenable number.

11164421755765 is a deficient number, since it is larger than the sum of its proper divisors (3015987872651).

11164421755765 is a wasteful number, since it uses less digits than its factorization.

11164421755765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4234749.

The product of its digits is 7056000, while the sum is 55.

The spelling of 11164421755765 in words is "eleven trillion, one hundred sixty-four billion, four hundred twenty-one million, seven hundred fifty-five thousand, seven hundred sixty-five".