8516158218638 has 16 divisors (see below), whose sum is σ = 14783927470080. Its totient is φ = 3603582319896.

The previous prime is 8516158218611. The next prime is 8516158218677. The reversal of 8516158218638 is 8368128516158.

It is a congruent 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, 3849980006 + ... + 3849982217.

It is an arithmetic number, because the mean of its divisors is an integer number (923995466880).

Almost surely, 2^{8516158218638} is an apocalyptic number.

8516158218638 is a deficient number, since it is larger than the sum of its proper divisors (6267769251442).

8516158218638 is a wasteful number, since it uses less digits than its factorization.

8516158218638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7699962311.

The product of its digits is 22118400, while the sum is 62.

The spelling of 8516158218638 in words is "eight trillion, five hundred sixteen billion, one hundred fifty-eight million, two hundred eighteen thousand, six hundred thirty-eight".