5665551000 has 256 divisors, whose sum is σ = 18592104960. Its totient is φ = 1434585600.

The previous prime is 5665550993. The next prime is 5665551029. The reversal of 5665551000 is 1555665.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4772407 + ... + 4773593.

It is an arithmetic number, because the mean of its divisors is an integer number (72625410).

Almost surely, 2^5665551000 is an apocalyptic number.

5665551000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5665551000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9296052480).

5665551000 is an abundant number, since it is smaller than the sum of its proper divisors (12926553960).

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

5665551000 is a wasteful number, since it uses less digits than its factorization.

5665551000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291 (or 1277 counting only the distinct ones).

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

The square root of 5665551000 is about 75269.8545235740. The cubic root of 5665551000 is about 1782.7100703369.

The spelling of 5665551000 in words is "five billion, six hundred sixty-five million, five hundred fifty-one thousand".