6558694449 has 8 divisors (see below), whose sum is σ = 8759675232. Its totient is φ = 4365088320.

The previous prime is 6558694409. The next prime is 6558694451. The reversal of 6558694449 is 9444968556.

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

It is not a de Polignac number, because 6558694449 - 2⁸ = 6558694193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6558694392 and 6558694401.

It is not an unprimeable number, because it can be changed into a prime (6558694409) 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, 1841587 + ... + 1845144.

It is an arithmetic number, because the mean of its divisors is an integer number (1094959404).

Almost surely, 2^6558694449 is an apocalyptic number.

It is an amenable number.

6558694449 is a deficient number, since it is larger than the sum of its proper divisors (2200980783).

6558694449 is a wasteful number, since it uses less digits than its factorization.

6558694449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3687327.

The product of its digits is 37324800, while the sum is 60.

The square root of 6558694449 is about 80985.7669532122. The cubic root of 6558694449 is about 1871.8561311357.

The spelling of 6558694449 in words is "six billion, five hundred fifty-eight million, six hundred ninety-four thousand, four hundred forty-nine".