13996321585 has 16 divisors (see below), whose sum is σ = 16876512000. Its totient is φ = 11143167616.

The previous prime is 13996321571. The next prime is 13996321597. The reversal of 13996321585 is 58512369931.

It is a cyclic number.

It is not a de Polignac number, because 13996321585 - 2¹³ = 13996313393 is a prime.

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, 2742366 + ... + 2747464.

It is an arithmetic number, because the mean of its divisors is an integer number (1054782000).

Almost surely, 2^13996321585 is an apocalyptic number.

It is an amenable number.

13996321585 is a deficient number, since it is larger than the sum of its proper divisors (2880190415).

13996321585 is a wasteful number, since it uses less digits than its factorization.

13996321585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7640.

The product of its digits is 1749600, while the sum is 52.

The spelling of 13996321585 in words is "thirteen billion, nine hundred ninety-six million, three hundred twenty-one thousand, five hundred eighty-five".