13253351644 has 12 divisors (see below), whose sum is σ = 24977470504. Its totient is φ = 6116931504.

The previous prime is 13253351633. The next prime is 13253351653. The reversal of 13253351644 is 44615335231.

It is a congruent number.

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, 127436022 + ... + 127436125.

Almost surely, 2^13253351644 is an apocalyptic number.

It is an amenable number.

13253351644 is a deficient number, since it is larger than the sum of its proper divisors (11724118860).

13253351644 is a wasteful number, since it uses less digits than its factorization.

13253351644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254872164 (or 254872162 counting only the distinct ones).

The product of its digits is 129600, while the sum is 37.

Adding to 13253351644 its reverse (44615335231), we get a palindrome (57868686875).

The spelling of 13253351644 in words is "thirteen billion, two hundred fifty-three million, three hundred fifty-one thousand, six hundred forty-four".