13816640515 has 16 divisors (see below), whose sum is σ = 16858487808. Its totient is φ = 10869175296.

The previous prime is 13816640489. The next prime is 13816640561. The reversal of 13816640515 is 51504661831.

It is not a de Polignac number, because 13816640515 - 2²¹ = 13814543363 is a prime.

It is a Duffinian 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, 24522 + ... + 168031.

It is an arithmetic number, because the mean of its divisors is an integer number (1053655488).

Almost surely, 2^13816640515 is an apocalyptic number.

13816640515 is a deficient number, since it is larger than the sum of its proper divisors (3041847293).

13816640515 is a wasteful number, since it uses less digits than its factorization.

13816640515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192798.

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 13816640515 in words is "thirteen billion, eight hundred sixteen million, six hundred forty thousand, five hundred fifteen".