12402660253072 has 20 divisors (see below), whose sum is σ = 24052059610956. Its totient is φ = 6195677127680.

The previous prime is 12402660253063. The next prime is 12402660253141. The reversal of 12402660253072 is 27035206620421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6272500214016 + 6130160039056 = 2504496^2 + 2475916^2 .

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, 353294329 + ... + 353329432.

Almost surely, 2^{12402660253072} is an apocalyptic number.

It is an amenable number.

12402660253072 is a deficient number, since it is larger than the sum of its proper divisors (11649399357884).

12402660253072 is a wasteful number, since it uses less digits than its factorization.

12402660253072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706624866 (or 706624860 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 40.

Adding to 12402660253072 its reverse (27035206620421), we get a palindrome (39437866873493).

The spelling of 12402660253072 in words is "twelve trillion, four hundred two billion, six hundred sixty million, two hundred fifty-three thousand, seventy-two".