11372820456 has 64 divisors (see below), whose sum is σ = 29563706880. Its totient is φ = 3641840640.

The previous prime is 11372820421. The next prime is 11372820457. The reversal of 11372820456 is 65402827311.

It is not an unprimeable number, because it can be changed into a prime (11372820457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46140 + ... + 157716.

It is an arithmetic number, because the mean of its divisors is an integer number (461932920).

Almost surely, 2^11372820456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11372820456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14781853440).

11372820456 is an abundant number, since it is smaller than the sum of its proper divisors (18190886424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11372820456 is a wasteful number, since it uses less digits than its factorization.

11372820456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111754 (or 111750 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 11372820456 in words is "eleven billion, three hundred seventy-two million, eight hundred twenty thousand, four hundred fifty-six".