6605501550 has 24 divisors (see below), whose sum is σ = 16381644216. Its totient is φ = 1761467040.

The previous prime is 6605501531. The next prime is 6605501561. The reversal of 6605501550 is 551055066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22018189 + ... + 22018488.

It is an arithmetic number, because the mean of its divisors is an integer number (682568509).

Almost surely, 2^6605501550 is an apocalyptic number.

6605501550 is an abundant number, since it is smaller than the sum of its proper divisors (9776142666).

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

6605501550 is a wasteful number, since it uses less digits than its factorization.

6605501550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44036692 (or 44036687 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 6605501550 is about 81274.2366928167. The cubic root of 6605501550 is about 1876.2985067507.

The spelling of 6605501550 in words is "six billion, six hundred five million, five hundred one thousand, five hundred fifty".