8115668858 has 32 divisors (see below), whose sum is σ = 13521504960. Its totient is φ = 3622354560.

The previous prime is 8115668851. The next prime is 8115668861. The reversal of 8115668858 is 8588665118.

It is a super-2 number, since 2×8115668858² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8115668851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356741 + ... + 378807.

It is an arithmetic number, because the mean of its divisors is an integer number (422547030).

Almost surely, 2^8115668858 is an apocalyptic number.

8115668858 is a deficient number, since it is larger than the sum of its proper divisors (5405836102).

8115668858 is a wasteful number, since it uses less digits than its factorization.

8115668858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22382.

The product of its digits is 3686400, while the sum is 56.

The square root of 8115668858 is about 90087.0071541951. The cubic root of 8115668858 is about 2009.5929852505.

The spelling of 8115668858 in words is "eight billion, one hundred fifteen million, six hundred sixty-eight thousand, eight hundred fifty-eight".