11247015580 has 12 divisors (see below), whose sum is σ = 23618732760. Its totient is φ = 4498806224.

The previous prime is 11247015557. The next prime is 11247015587. The reversal of 11247015580 is 8551074211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11247015587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281175370 + ... + 281175409.

It is an arithmetic number, because the mean of its divisors is an integer number (1968227730).

Almost surely, 2^11247015580 is an apocalyptic number.

11247015580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11247015580 is an abundant number, since it is smaller than the sum of its proper divisors (12371717180).

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

11247015580 is a wasteful number, since it uses less digits than its factorization.

11247015580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562350788 (or 562350786 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 34.

Adding to 11247015580 its reverse (8551074211), we get a palindrome (19798089791).

The spelling of 11247015580 in words is "eleven billion, two hundred forty-seven million, fifteen thousand, five hundred eighty".