12898160644 has 24 divisors (see below), whose sum is σ = 24482453688. Its totient is φ = 5921679360.

The previous prime is 12898160629. The next prime is 12898160647. The reversal of 12898160644 is 44606189821.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 221652544 + 12676508100 = 14888^2 + 112590^2 .

It is not an unprimeable number, because it can be changed into a prime (12898160647) 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, 2310369 + ... + 2315944.

It is an arithmetic number, because the mean of its divisors is an integer number (1020102237).

Almost surely, 2^12898160644 is an apocalyptic number.

It is an amenable number.

12898160644 is a deficient number, since it is larger than the sum of its proper divisors (11584293044).

12898160644 is a wasteful number, since it uses less digits than its factorization.

12898160644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4626375 (or 4626373 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 49.

The spelling of 12898160644 in words is "twelve billion, eight hundred ninety-eight million, one hundred sixty thousand, six hundred forty-four".