6558228784 has 20 divisors (see below), whose sum is σ = 13375335640. Its totient is φ = 3106529280.

The previous prime is 6558228779. The next prime is 6558228791. The reversal of 6558228784 is 4878228556.

It is a super-2 number, since 2×6558228784² = 86020729566572237312, which contains 22 as substring.

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, 10786257 + ... + 10786864.

It is an arithmetic number, because the mean of its divisors is an integer number (668766782).

Almost surely, 2^6558228784 is an apocalyptic number.

It is an amenable number.

6558228784 is an abundant number, since it is smaller than the sum of its proper divisors (6817106856).

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

6558228784 is a wasteful number, since it uses less digits than its factorization.

6558228784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21573148 (or 21573142 counting only the distinct ones).

The product of its digits is 8601600, while the sum is 55.

The square root of 6558228784 is about 80982.8919216892. The cubic root of 6558228784 is about 1871.8118297115.

The spelling of 6558228784 in words is "six billion, five hundred fifty-eight million, two hundred twenty-eight thousand, seven hundred eighty-four".