13503220865 has 8 divisors (see below), whose sum is σ = 17056700160. Its totient is φ = 10234019952.

The previous prime is 13503220859. The next prime is 13503220873. The reversal of 13503220865 is 56802230531.

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 13503220865 - 2⁴ = 13503220849 is a prime.

It is a Curzon 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, 71069489 + ... + 71069678.

It is an arithmetic number, because the mean of its divisors is an integer number (2132087520).

Almost surely, 2^13503220865 is an apocalyptic number.

It is an amenable number.

13503220865 is a deficient number, since it is larger than the sum of its proper divisors (3553479295).

13503220865 is a wasteful number, since it uses less digits than its factorization.

13503220865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142139191.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 13503220865 in words is "thirteen billion, five hundred three million, two hundred twenty thousand, eight hundred sixty-five".