5665066550 has 48 divisors (see below), whose sum is σ = 12379176432. Its totient is φ = 1901558400.

The previous prime is 5665066531. The next prime is 5665066577. The reversal of 5665066550 is 556605665.

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, 389009 + ... + 403308.

It is an arithmetic number, because the mean of its divisors is an integer number (257899509).

Almost surely, 2^5665066550 is an apocalyptic number.

5665066550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5665066550 is an abundant number, since it is smaller than the sum of its proper divisors (6714109882).

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

5665066550 is a wasteful number, since it uses less digits than its factorization.

5665066550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792353 (or 792348 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 44.

The square root of 5665066550 is about 75266.6363669853. The cubic root of 5665066550 is about 1782.6592568908.

The spelling of 5665066550 in words is "five billion, six hundred sixty-five million, sixty-six thousand, five hundred fifty".