8221163810 has 16 divisors (see below), whose sum is σ = 14799298752. Its totient is φ = 3288198000.

The previous prime is 8221163809. The next prime is 8221163869. The reversal of 8221163810 is 183611228.

It is a super-2 number, since 2×8221163810² (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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136985 + ... + 187635.

It is an arithmetic number, because the mean of its divisors is an integer number (924956172).

Almost surely, 2^8221163810 is an apocalyptic number.

8221163810 is a deficient number, since it is larger than the sum of its proper divisors (6578134942).

8221163810 is a wasteful number, since it uses less digits than its factorization.

8221163810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66889.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 8221163810 is about 90670.6336693419. The cubic root of 8221163810 is about 2018.2630405557.

The spelling of 8221163810 in words is "eight billion, two hundred twenty-one million, one hundred sixty-three thousand, eight hundred ten".