11550265438 has 4 divisors (see below), whose sum is σ = 17325398160. Its totient is φ = 5775132718.

The previous prime is 11550265427. The next prime is 11550265453. The reversal of 11550265438 is 83456205511.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11550265438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2887566358 + ... + 2887566361.

It is an arithmetic number, because the mean of its divisors is an integer number (4331349540).

Almost surely, 2^11550265438 is an apocalyptic number.

11550265438 is a deficient number, since it is larger than the sum of its proper divisors (5775132722).

11550265438 is an equidigital number, since it uses as much as digits as its factorization.

11550265438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5775132721.

The product of its (nonzero) digits is 144000, while the sum is 40.

The spelling of 11550265438 in words is "eleven billion, five hundred fifty million, two hundred sixty-five thousand, four hundred thirty-eight".