12235567780 has 24 divisors (see below), whose sum is σ = 25762504320. Its totient is φ = 4881310560.

The previous prime is 12235567739. The next prime is 12235567787. The reversal of 12235567780 is 8776553221.

It is a self number, because there is not a number n which added to its sum of digits gives 12235567780.

It is not an unprimeable number, because it can be changed into a prime (12235567787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 799516 + ... + 814675.

It is an arithmetic number, because the mean of its divisors is an integer number (1073437680).

Almost surely, 2^12235567780 is an apocalyptic number.

12235567780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12235567780 is an abundant number, since it is smaller than the sum of its proper divisors (13526936540).

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

12235567780 is a wasteful number, since it uses less digits than its factorization.

12235567780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614579 (or 1614577 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 12235567780 in words is "twelve billion, two hundred thirty-five million, five hundred sixty-seven thousand, seven hundred eighty".