11255264536661 has 4 divisors (see below), whose sum is σ = 11255277604332. Its totient is φ = 11255251468992.

The previous prime is 11255264536601. The next prime is 11255264536667. The reversal of 11255264536661 is 16663546255211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10869088048900 + 386176487761 = 3296830^2 + 621431^2 .

It is a cyclic number.

It is not a de Polignac number, because 11255264536661 - 2⁶ = 11255264536597 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 (11255264536667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5143220 + ... + 6997373.

It is an arithmetic number, because the mean of its divisors is an integer number (2813819401083).

Almost surely, 2^{11255264536661} is an apocalyptic number.

It is an amenable number.

11255264536661 is a deficient number, since it is larger than the sum of its proper divisors (13067671).

11255264536661 is an equidigital number, since it uses as much as digits as its factorization.

11255264536661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13067670.

The product of its digits is 7776000, while the sum is 53.

The spelling of 11255264536661 in words is "eleven trillion, two hundred fifty-five billion, two hundred sixty-four million, five hundred thirty-six thousand, six hundred sixty-one".