12135246560 has 24 divisors (see below), whose sum is σ = 28669520376. Its totient is φ = 4854098560.

The previous prime is 12135246559. The next prime is 12135246623. The reversal of 12135246560 is 6564253121.

It is a self number, because there is not a number n which added to its sum of digits gives 12135246560.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37922486 + ... + 37922805.

It is an arithmetic number, because the mean of its divisors is an integer number (1194563349).

Almost surely, 2^12135246560 is an apocalyptic number.

12135246560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12135246560 is an abundant number, since it is smaller than the sum of its proper divisors (16534273816).

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

12135246560 is an equidigital number, since it uses as much as digits as its factorization.

12135246560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75845306 (or 75845298 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 12135246560 its reverse (6564253121), we get a palindrome (18699499681).

The spelling of 12135246560 in words is "twelve billion, one hundred thirty-five million, two hundred forty-six thousand, five hundred sixty".