811066280 has 16 divisors (see below), whose sum is σ = 1824899220. Its totient is φ = 324426496.

The previous prime is 811066247. The next prime is 811066283. The reversal of 811066280 is 82660118.

811066280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 758561764 + 52504516 = 27542^2 + 7246^2 .

It is not an unprimeable number, because it can be changed into a prime (811066283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10138289 + ... + 10138368.

Almost surely, 2^811066280 is an apocalyptic number.

It is an amenable number.

811066280 is an abundant number, since it is smaller than the sum of its proper divisors (1013832940).

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

811066280 is a wasteful number, since it uses less digits than its factorization.

811066280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20276668 (or 20276664 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 811066280 is about 28479.2254108148. The cubic root of 811066280 is about 932.5786069863.

The spelling of 811066280 in words is "eight hundred eleven million, sixty-six thousand, two hundred eighty".