6605604587 has 4 divisors (see below), whose sum is σ = 6766716936. Its totient is φ = 6444492240.

The previous prime is 6605604563. The next prime is 6605604617. The reversal of 6605604587 is 7854065066.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6605604587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6605604517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80556113 + ... + 80556194.

It is an arithmetic number, because the mean of its divisors is an integer number (1691679234).

Almost surely, 2^6605604587 is an apocalyptic number.

6605604587 is a deficient number, since it is larger than the sum of its proper divisors (161112349).

6605604587 is a wasteful number, since it uses less digits than its factorization.

6605604587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161112348.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The square root of 6605604587 is about 81274.8705751046. The cubic root of 6605604587 is about 1876.3082626168.

The spelling of 6605604587 in words is "six billion, six hundred five million, six hundred four thousand, five hundred eighty-seven".