8143135664 has 20 divisors (see below), whose sum is σ = 16144241256. Its totient is φ = 3976879872.

The previous prime is 8143135631. The next prime is 8143135681. The reversal of 8143135664 is 4665313418.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5917289 + ... + 5918664.

Almost surely, 2^8143135664 is an apocalyptic number.

It is an amenable number.

8143135664 is a deficient number, since it is larger than the sum of its proper divisors (8001105592).

8143135664 is a wasteful number, since it uses less digits than its factorization.

8143135664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11836004 (or 11835998 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 8143135664 is about 90239.3243769034. The cubic root of 8143135664 is about 2011.8575325293.

The spelling of 8143135664 in words is "eight billion, one hundred forty-three million, one hundred thirty-five thousand, six hundred sixty-four".