6551065266 has 64 divisors (see below), whose sum is σ = 13923394560. Its totient is φ = 2051239680.

The previous prime is 6551065253. The next prime is 6551065319. The reversal of 6551065266 is 6625601556.

It is a super-2 number, since 2×6551065266² = 85832912238783301512, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3832420 + ... + 3834128.

It is an arithmetic number, because the mean of its divisors is an integer number (217553040).

Almost surely, 2^6551065266 is an apocalyptic number.

6551065266 is an abundant number, since it is smaller than the sum of its proper divisors (7372329294).

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

6551065266 is a wasteful number, since it uses less digits than its factorization.

6551065266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339.

The product of its (nonzero) digits is 324000, while the sum is 42.

The square root of 6551065266 is about 80938.6512489552. The cubic root of 6551065266 is about 1871.1300580906.

The spelling of 6551065266 in words is "six billion, five hundred fifty-one million, sixty-five thousand, two hundred sixty-six".