13320253053656 has 32 divisors (see below), whose sum is σ = 26477922391680. Its totient is φ = 6271086873600.

The previous prime is 13320253053571. The next prime is 13320253053673. The reversal of 13320253053656 is 65635035202331.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725811065 + ... + 725829416.

It is an arithmetic number, because the mean of its divisors is an integer number (827435074740).

Almost surely, 2^{13320253053656} is an apocalyptic number.

It is an amenable number.

13320253053656 is a deficient number, since it is larger than the sum of its proper divisors (13157669338024).

13320253053656 is a wasteful number, since it uses less digits than its factorization.

13320253053656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451640555 (or 1451640551 counting only the distinct ones).

The product of its (nonzero) digits is 1458000, while the sum is 44.

Adding to 13320253053656 its reverse (65635035202331), we get a palindrome (78955288255987).

The spelling of 13320253053656 in words is "thirteen trillion, three hundred twenty billion, two hundred fifty-three million, fifty-three thousand, six hundred fifty-six".