8220223064 has 8 divisors (see below), whose sum is σ = 15412918260. Its totient is φ = 4110111528.

The previous prime is 8220223021. The next prime is 8220223079. The reversal of 8220223064 is 4603220228.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 513763934 + ... + 513763949.

Almost surely, 2^8220223064 is an apocalyptic number.

It is an amenable number.

8220223064 is a deficient number, since it is larger than the sum of its proper divisors (7192695196).

8220223064 is a wasteful number, since it uses less digits than its factorization.

8220223064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027527889 (or 1027527885 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 8220223064 is about 90665.4458104078. The cubic root of 8220223064 is about 2018.1860544844.

The spelling of 8220223064 in words is "eight billion, two hundred twenty million, two hundred twenty-three thousand, sixty-four".