11560523721 has 8 divisors (see below), whose sum is σ = 15945550080. Its totient is φ = 7441256592.

The previous prime is 11560523707. The next prime is 11560523771. The reversal of 11560523721 is 12732506511.

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

It is not a de Polignac number, because 11560523721 - 2⁶ = 11560523657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11560523771) 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, 66439705 + ... + 66439878.

It is an arithmetic number, because the mean of its divisors is an integer number (1993193760).

Almost surely, 2^11560523721 is an apocalyptic number.

It is an amenable number.

11560523721 is a deficient number, since it is larger than the sum of its proper divisors (4385026359).

11560523721 is a wasteful number, since it uses less digits than its factorization.

11560523721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132879615.

The product of its (nonzero) digits is 12600, while the sum is 33.

The spelling of 11560523721 in words is "eleven billion, five hundred sixty million, five hundred twenty-three thousand, seven hundred twenty-one".