6555522222 has 24 divisors (see below), whose sum is σ = 14211942264. Its totient is φ = 2183895504.

The previous prime is 6555522221. The next prime is 6555522227. The reversal of 6555522222 is 2222255556.

6555522222 is a `hidden beast` number, since 65 + 5 + 552 + 22 + 22 = 666.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6555522221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74673 + ... + 136700.

It is an arithmetic number, because the mean of its divisors is an integer number (592164261).

Almost surely, 2^6555522222 is an apocalyptic number.

6555522222 is an abundant number, since it is smaller than the sum of its proper divisors (7656420042).

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

6555522222 is a wasteful number, since it uses less digits than its factorization.

6555522222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213104 (or 213101 counting only the distinct ones).

The product of its digits is 120000, while the sum is 36.

The square root of 6555522222 is about 80966.1794948977. The cubic root of 6555522222 is about 1871.5542971760.

Adding to 6555522222 its reverse (2222255556), we get a palindrome (8777777778).

The spelling of 6555522222 in words is "six billion, five hundred fifty-five million, five hundred twenty-two thousand, two hundred twenty-two".