11550240422261 has 4 divisors (see below), whose sum is σ = 11550297624000. Its totient is φ = 11550183220524.

The previous prime is 11550240422251. The next prime is 11550240422291. The reversal of 11550240422261 is 16222404205511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11550240422261 is a prime.

It is a super-3 number, since 3×11550240422261³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11550240422251) 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, 28296911 + ... + 28702188.

It is an arithmetic number, because the mean of its divisors is an integer number (2887574406000).

Almost surely, 2^{11550240422261} is an apocalyptic number.

It is an amenable number.

11550240422261 is a deficient number, since it is larger than the sum of its proper divisors (57201739).

11550240422261 is an equidigital number, since it uses as much as digits as its factorization.

11550240422261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57201738.

The product of its (nonzero) digits is 38400, while the sum is 35.

Adding to 11550240422261 its reverse (16222404205511), we get a palindrome (27772644627772).

The spelling of 11550240422261 in words is "eleven trillion, five hundred fifty billion, two hundred forty million, four hundred twenty-two thousand, two hundred sixty-one".