11256416580 has 48 divisors (see below), whose sum is σ = 31729521600. Its totient is φ = 2981563008.

The previous prime is 11256416573. The next prime is 11256416581. The reversal of 11256416580 is 8561465211.

It is not an unprimeable number, because it can be changed into a prime (11256416581) 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, 620614 + ... + 638493.

It is an arithmetic number, because the mean of its divisors is an integer number (661031700).

Almost surely, 2^11256416580 is an apocalyptic number.

11256416580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11256416580 is an abundant number, since it is smaller than the sum of its proper divisors (20473105020).

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

11256416580 is a wasteful number, since it uses less digits than its factorization.

11256416580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259268 (or 1259266 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 39.

The spelling of 11256416580 in words is "eleven billion, two hundred fifty-six million, four hundred sixteen thousand, five hundred eighty".