12402241661560 has 16 divisors (see below), whose sum is σ = 27905043738600. Its totient is φ = 4960896664608.

The previous prime is 12402241661519. The next prime is 12402241661561. The reversal of 12402241661560 is 6516614220421.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 310056041539 = 12402241661560 / (1 + 2 + 4 + 0 + 2 + 2 + 4 + 1 + 6 + 6 + 1 + 5 + 6 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12402241661561) 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, 155028020730 + ... + 155028020809.

Almost surely, 2^{12402241661560} is an apocalyptic number.

12402241661560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12402241661560 is an abundant number, since it is smaller than the sum of its proper divisors (15502802077040).

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

12402241661560 is a wasteful number, since it uses less digits than its factorization.

12402241661560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310056041550 (or 310056041546 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

Adding to 12402241661560 its reverse (6516614220421), we get a palindrome (18918855881981).

The spelling of 12402241661560 in words is "twelve trillion, four hundred two billion, two hundred forty-one million, six hundred sixty-one thousand, five hundred sixty".