865266255230 has 24 divisors (see below), whose sum is σ = 1686501213192. Its totient is φ = 319482924384.

The previous prime is 865266255179. The next prime is 865266255233. The reversal of 865266255230 is 32552662568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (865266255233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255994244 + ... + 255997623.

It is an arithmetic number, because the mean of its divisors is an integer number (70270883883).

Almost surely, 2^865266255230 is an apocalyptic number.

865266255230 is a deficient number, since it is larger than the sum of its proper divisors (821234957962).

865266255230 is a wasteful number, since it uses less digits than its factorization.

865266255230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511991900 (or 511991887 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 50.

The spelling of 865266255230 in words is "eight hundred sixty-five billion, two hundred sixty-six million, two hundred fifty-five thousand, two hundred thirty".