866320073223 has 32 divisors (see below), whose sum is σ = 1274421496320. Its totient is φ = 519077475840.

The previous prime is 866320073209. The next prime is 866320073233. The reversal of 866320073223 is 322370023668.

It is not a de Polignac number, because 866320073223 - 2¹⁶ = 866320007687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866320073233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33418915 + ... + 33444827.

It is an arithmetic number, because the mean of its divisors is an integer number (39825671760).

Almost surely, 2^866320073223 is an apocalyptic number.

866320073223 is a deficient number, since it is larger than the sum of its proper divisors (408101423097).

866320073223 is a wasteful number, since it uses less digits than its factorization.

866320073223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37399.

The product of its (nonzero) digits is 435456, while the sum is 42.

The spelling of 866320073223 in words is "eight hundred sixty-six billion, three hundred twenty million, seventy-three thousand, two hundred twenty-three".