6551065008 has 60 divisors (see below), whose sum is σ = 18539918280. Its totient is φ = 2159148288.

The previous prime is 6551064973. The next prime is 6551065009. The reversal of 6551065008 is 8005601556.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (6551065009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 242766 + ... + 268397.

It is an arithmetic number, because the mean of its divisors is an integer number (308998638).

Almost surely, 2^6551065008 is an apocalyptic number.

It is an amenable number.

6551065008 is an abundant number, since it is smaller than the sum of its proper divisors (11988853272).

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

6551065008 is a wasteful number, since it uses less digits than its factorization.

6551065008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511266 (or 511257 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 6551065008 is about 80938.6496551555. The cubic root of 6551065008 is about 1871.1300335271.

The spelling of 6551065008 in words is "six billion, five hundred fifty-one million, sixty-five thousand, eight".