13315538653 has 8 divisors (see below), whose sum is σ = 13384113080. Its totient is φ = 13247055360.

The previous prime is 13315538617. The next prime is 13315538669. The reversal of 13315538653 is 35683551331.

It can be written as a sum of positive squares in 4 ways, for example, as 10184240889 + 3131297764 = 100917^2 + 55958^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13315538653 - 2⁹ = 13315538141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13315538693) 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, 280501 + ... + 324517.

It is an arithmetic number, because the mean of its divisors is an integer number (1673014135).

Almost surely, 2^13315538653 is an apocalyptic number.

It is an amenable number.

13315538653 is a deficient number, since it is larger than the sum of its proper divisors (68574427).

13315538653 is a wasteful number, since it uses less digits than its factorization.

13315538653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45567.

The product of its digits is 486000, while the sum is 43.

The spelling of 13315538653 in words is "thirteen billion, three hundred fifteen million, five hundred thirty-eight thousand, six hundred fifty-three".