866788526220337 has 8 divisors (see below), whose sum is σ = 995748181122176. Its totient is φ = 739112051964672.

The previous prime is 866788526220329. The next prime is 866788526220347. The reversal of 866788526220337 is 733022625887668.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 866788526220337 - 2³ = 866788526220329 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 866788526220337.

It is not an unprimeable number, because it can be changed into a prime (866788526220347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320795160093 + ... + 320795162794.

It is an arithmetic number, because the mean of its divisors is an integer number (124468522640272).

Almost surely, 2^{866788526220337} is an apocalyptic number.

It is an amenable number.

866788526220337 is a deficient number, since it is larger than the sum of its proper divisors (128959654901839).

866788526220337 is a wasteful number, since it uses less digits than its factorization.

866788526220337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641590323087.

The product of its (nonzero) digits is 1950842880, while the sum is 73.

The spelling of 866788526220337 in words is "eight hundred sixty-six trillion, seven hundred eighty-eight billion, five hundred twenty-six million, two hundred twenty thousand, three hundred thirty-seven".