12496665280 has 56 divisors (see below), whose sum is σ = 32462937360. Its totient is φ = 4544240640.

The previous prime is 12496665229. The next prime is 12496665283. The reversal of 12496665280 is 8256669421.

It is not an unprimeable number, because it can be changed into a prime (12496665283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1771575 + ... + 1778614.

It is an arithmetic number, because the mean of its divisors is an integer number (579695310).

Almost surely, 2^12496665280 is an apocalyptic number.

12496665280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12496665280 is an abundant number, since it is smaller than the sum of its proper divisors (19966272080).

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

12496665280 is a wasteful number, since it uses less digits than its factorization.

12496665280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3550217 (or 3550207 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

It can be divided in two parts, 12496 and 665280, that added together give a palindrome (677776).

The spelling of 12496665280 in words is "twelve billion, four hundred ninety-six million, six hundred sixty-five thousand, two hundred eighty".