6598638920 has 32 divisors (see below), whose sum is σ = 15325873920. Its totient is φ = 2554311360.

The previous prime is 6598638919. The next prime is 6598638923. The reversal of 6598638920 is 298368956.

It is not an unprimeable number, because it can be changed into a prime (6598638923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2659502 + ... + 2661981.

It is an arithmetic number, because the mean of its divisors is an integer number (478933560).

Almost surely, 2^6598638920 is an apocalyptic number.

It is an amenable number.

6598638920 is an abundant number, since it is smaller than the sum of its proper divisors (8727235000).

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

6598638920 is a wasteful number, since it uses less digits than its factorization.

6598638920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5321525 (or 5321521 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 56.

The square root of 6598638920 is about 81232.0067461096. The cubic root of 6598638920 is about 1875.6485029072.

The spelling of 6598638920 in words is "six billion, five hundred ninety-eight million, six hundred thirty-eight thousand, nine hundred twenty".