6648255198 has 64 divisors (see below), whose sum is σ = 16280436480. Its totient is φ = 1998035424.

The previous prime is 6648255193. The next prime is 6648255199. The reversal of 6648255198 is 8915528466.

6648255198 is a `hidden beast` number, since 6 + 6 + 4 + 82 + 551 + 9 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6648255193) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79936 + ... + 140307.

It is an arithmetic number, because the mean of its divisors is an integer number (254381820).

Almost surely, 2^6648255198 is an apocalyptic number.

6648255198 is an abundant number, since it is smaller than the sum of its proper divisors (9632181282).

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

6648255198 is a wasteful number, since it uses less digits than its factorization.

6648255198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220310 (or 220304 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 54.

The square root of 6648255198 is about 81536.8333822206. The cubic root of 6648255198 is about 1880.3378748022.

The spelling of 6648255198 in words is "six billion, six hundred forty-eight million, two hundred fifty-five thousand, one hundred ninety-eight".