13501553663613 has 8 divisors (see below), whose sum is σ = 18784770314688. Its totient is φ = 8609686394144.

The previous prime is 13501553663599. The next prime is 13501553663657. The reversal of 13501553663613 is 31636635510531.

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 13501553663613 - 2⁵ = 13501553663581 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13501553663693) 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, 97837345320 + ... + 97837345457.

It is an arithmetic number, because the mean of its divisors is an integer number (2348096289336).

Almost surely, 2^{13501553663613} is an apocalyptic number.

It is an amenable number.

13501553663613 is a deficient number, since it is larger than the sum of its proper divisors (5283216651075).

13501553663613 is a wasteful number, since it uses less digits than its factorization.

13501553663613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195674690803.

The product of its (nonzero) digits is 2187000, while the sum is 48.

The spelling of 13501553663613 in words is "thirteen trillion, five hundred one billion, five hundred fifty-three million, six hundred sixty-three thousand, six hundred thirteen".