6555516605 has 16 divisors (see below), whose sum is σ = 8666742528. Its totient is φ = 4720440000.

The previous prime is 6555516599. The next prime is 6555516623. The reversal of 6555516605 is 5066155556.

It is a de Polignac number, because none of the positive numbers 2^k-6555516605 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 584501 + ... + 595610.

It is an arithmetic number, because the mean of its divisors is an integer number (541671408).

Almost surely, 2^6555516605 is an apocalyptic number.

It is an amenable number.

6555516605 is a deficient number, since it is larger than the sum of its proper divisors (2111225923).

6555516605 is a wasteful number, since it uses less digits than its factorization.

6555516605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180228.

The product of its (nonzero) digits is 675000, while the sum is 44.

The square root of 6555516605 is about 80966.1448075676. The cubic root of 6555516605 is about 1871.5537626382.

The spelling of 6555516605 in words is "six billion, five hundred fifty-five million, five hundred sixteen thousand, six hundred five".