13515256205 has 16 divisors (see below), whose sum is σ = 18461948544. Its totient is φ = 9401916480.

The previous prime is 13515256177. The next prime is 13515256211. The reversal of 13515256205 is 50265251531.

It is not a de Polignac number, because 13515256205 - 2¹⁰ = 13515255181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5340734 + ... + 5343263.

It is an arithmetic number, because the mean of its divisors is an integer number (1153871784).

Almost surely, 2^13515256205 is an apocalyptic number.

It is an amenable number.

13515256205 is a deficient number, since it is larger than the sum of its proper divisors (4946692339).

13515256205 is a wasteful number, since it uses less digits than its factorization.

13515256205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10684036.

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 13515256205 in words is "thirteen billion, five hundred fifteen million, two hundred fifty-six thousand, two hundred five".