6609523558 has 12 divisors (see below), whose sum is σ = 10816208028. Its totient is φ = 3004155560.

The previous prime is 6609523549. The next prime is 6609523573. The reversal of 6609523558 is 8553259066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 372660 + ... + 389992.

It is an arithmetic number, because the mean of its divisors is an integer number (901350669).

Almost surely, 2^6609523558 is an apocalyptic number.

6609523558 is a deficient number, since it is larger than the sum of its proper divisors (4206684470).

6609523558 is an frugal number, since it uses more digits than its factorization.

6609523558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34679 (or 17346 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 49.

The square root of 6609523558 is about 81298.9763650195. The cubic root of 6609523558 is about 1876.6792477846.

The spelling of 6609523558 in words is "six billion, six hundred nine million, five hundred twenty-three thousand, five hundred fifty-eight".