6655500005550 has 48 divisors (see below), whose sum is σ = 18006152746752. Its totient is φ = 1613454546400.

The previous prime is 6655500005533. The next prime is 6655500005579. The reversal of 6655500005550 is 555000055566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2016816534 + ... + 2016819833.

It is an arithmetic number, because the mean of its divisors is an integer number (375128182224).

Almost surely, 2^{6655500005550} is an apocalyptic number.

6655500005550 is an abundant number, since it is smaller than the sum of its proper divisors (11350652741202).

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

6655500005550 is a wasteful number, since it uses less digits than its factorization.

6655500005550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4033636393 (or 4033636388 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 42.

It can be divided in two parts, 6 and 655500005550, that added together give a palindrome (655500005556).

The spelling of 6655500005550 in words is "six trillion, six hundred fifty-five billion, five hundred million, five thousand, five hundred fifty".