11265661263 has 4 divisors (see below), whose sum is σ = 15020881688. Its totient is φ = 7510440840.

The previous prime is 11265661261. The next prime is 11265661273. The reversal of 11265661263 is 36216656211.

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

It is not a de Polignac number, because 11265661263 - 2¹ = 11265661261 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 (11265661261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1877610208 + ... + 1877610213.

It is an arithmetic number, because the mean of its divisors is an integer number (3755220422).

Almost surely, 2^11265661263 is an apocalyptic number.

11265661263 is a deficient number, since it is larger than the sum of its proper divisors (3755220425).

11265661263 is an equidigital number, since it uses as much as digits as its factorization.

11265661263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3755220424.

The product of its digits is 77760, while the sum is 39.

The spelling of 11265661263 in words is "eleven billion, two hundred sixty-five million, six hundred sixty-one thousand, two hundred sixty-three".