8169967816 has 16 divisors (see below), whose sum is σ = 15984720000. Its totient is φ = 3907375824.

The previous prime is 8169967777. The next prime is 8169967847. The reversal of 8169967816 is 6187699618.

It is a super-2 number, since 2×8169967816² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22200816 + ... + 22201183.

It is an arithmetic number, because the mean of its divisors is an integer number (999045000).

Almost surely, 2^8169967816 is an apocalyptic number.

It is an amenable number.

8169967816 is a deficient number, since it is larger than the sum of its proper divisors (7814752184).

8169967816 is a wasteful number, since it uses less digits than its factorization.

8169967816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44402028 (or 44402024 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 61.

The square root of 8169967816 is about 90387.8742752588. The cubic root of 8169967816 is about 2014.0648429050.

The spelling of 8169967816 in words is "eight billion, one hundred sixty-nine million, nine hundred sixty-seven thousand, eight hundred sixteen".