8166623384 has 16 divisors (see below), whose sum is σ = 15806368320. Its totient is φ = 3951591840.

The previous prime is 8166623371. The next prime is 8166623471. The reversal of 8166623384 is 4833266618.

It is a super-2 number, since 2×8166623384² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 16464719 + ... + 16465214.

It is an arithmetic number, because the mean of its divisors is an integer number (987898020).

Almost surely, 2^8166623384 is an apocalyptic number.

It is an amenable number.

8166623384 is a deficient number, since it is larger than the sum of its proper divisors (7639744936).

8166623384 is a wasteful number, since it uses less digits than its factorization.

8166623384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32929970 (or 32929966 counting only the distinct ones).

The product of its digits is 995328, while the sum is 47.

The square root of 8166623384 is about 90369.3719354074. The cubic root of 8166623384 is about 2013.7899816734.

The spelling of 8166623384 in words is "eight billion, one hundred sixty-six million, six hundred twenty-three thousand, three hundred eighty-four".