11520244551 has 8 divisors (see below), whose sum is σ = 15384069504. Its totient is φ = 7668291320.

The previous prime is 11520244517. The next prime is 11520244591. The reversal of 11520244551 is 15544202511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11520244551 - 2²⁷ = 11386026823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11520244501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2965665 + ... + 2969546.

It is an arithmetic number, because the mean of its divisors is an integer number (1923008688).

Almost surely, 2^11520244551 is an apocalyptic number.

11520244551 is a deficient number, since it is larger than the sum of its proper divisors (3863824953).

11520244551 is an equidigital number, since it uses as much as digits as its factorization.

11520244551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5935861.

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 11520244551 in words is "eleven billion, five hundred twenty million, two hundred forty-four thousand, five hundred fifty-one".