13253366643 has 16 divisors (see below), whose sum is σ = 19302729600. Its totient is φ = 8021882880.

The previous prime is 13253366629. The next prime is 13253366657. The reversal of 13253366643 is 34666335231.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13253366629) and next prime (13253366657).

It is not a de Polignac number, because 13253366643 - 2⁵ = 13253366611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13253366595 and 13253366604.

It is not an unprimeable number, because it can be changed into a prime (13253366603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235753 + ... + 286506.

It is an arithmetic number, because the mean of its divisors is an integer number (1206420600).

Almost surely, 2^13253366643 is an apocalyptic number.

13253366643 is a deficient number, since it is larger than the sum of its proper divisors (6049362957).

13253366643 is a wasteful number, since it uses less digits than its factorization.

13253366643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523042.

The product of its digits is 699840, while the sum is 42.

The spelling of 13253366643 in words is "thirteen billion, two hundred fifty-three million, three hundred sixty-six thousand, six hundred forty-three".