8685555222 has 8 divisors (see below), whose sum is σ = 17371110456. Its totient is φ = 2895185072.

The previous prime is 8685555199. The next prime is 8685555247. The reversal of 8685555222 is 2225555868.

It is a sphenic number, since it is the product of 3 distinct primes.

8685555222 is an admirable number.

It is a super-2 number, since 2×8685555222² (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, 723796263 + ... + 723796274.

It is an arithmetic number, because the mean of its divisors is an integer number (2171388807).

Almost surely, 2^8685555222 is an apocalyptic number.

8685555222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8685555222 is a wasteful number, since it uses less digits than its factorization.

8685555222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447592542.

The product of its digits is 1920000, while the sum is 48.

The square root of 8685555222 is about 93196.3262258765. The cubic root of 8685555222 is about 2055.5712204891.

The spelling of 8685555222 in words is "eight billion, six hundred eighty-five million, five hundred fifty-five thousand, two hundred twenty-two".