8199166689 has 12 divisors (see below), whose sum is σ = 13535132416. Its totient is φ = 4685238072.

The previous prime is 8199166687. The next prime is 8199166733. The reversal of 8199166689 is 9866619918.

It is not a de Polignac number, because 8199166689 - 2¹ = 8199166687 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63), and also a Moran number because the ratio is a prime number: 130145503 = 8199166689 / (8 + 1 + 9 + 9 + 1 + 6 + 6 + 6 + 8 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8199166687) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65072689 + ... + 65072814.

Almost surely, 2^8199166689 is an apocalyptic number.

It is an amenable number.

8199166689 is a deficient number, since it is larger than the sum of its proper divisors (5335965727).

8199166689 is a wasteful number, since it uses less digits than its factorization.

8199166689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130145516 (or 130145513 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 63.

The square root of 8199166689 is about 90549.2500742000. The cubic root of 8199166689 is about 2016.4613641089.

The spelling of 8199166689 in words is "eight billion, one hundred ninety-nine million, one hundred sixty-six thousand, six hundred eighty-nine".