11560212500 has 72 divisors (see below), whose sum is σ = 26774270712. Its totient is φ = 4352000000.

The previous prime is 11560212479. The next prime is 11560212529. The reversal of 11560212500 is 521206511.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 10576888336 + 983324164 = 102844^2 + 31358^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 185300 + ... + 239700.

It is an arithmetic number, because the mean of its divisors is an integer number (371864871).

Almost surely, 2^11560212500 is an apocalyptic number.

11560212500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11560212500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13387135356).

11560212500 is an abundant number, since it is smaller than the sum of its proper divisors (15214058212).

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

11560212500 is an equidigital number, since it uses as much as digits as its factorization.

11560212500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54447 (or 54425 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

The spelling of 11560212500 in words is "eleven billion, five hundred sixty million, two hundred twelve thousand, five hundred".