866434768336 has 40 divisors (see below), whose sum is σ = 1733096217600. Its totient is φ = 419187788160.

The previous prime is 866434768319. The next prime is 866434768373. The reversal of 866434768336 is 633867434668.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3817530 + ... + 4038118.

It is an arithmetic number, because the mean of its divisors is an integer number (43327405440).

Almost surely, 2^866434768336 is an apocalyptic number.

It is an amenable number.

866434768336 is an abundant number, since it is smaller than the sum of its proper divisors (866661449264).

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

866434768336 is a wasteful number, since it uses less digits than its factorization.

866434768336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228547 (or 228541 counting only the distinct ones).

The product of its digits is 250822656, while the sum is 64.

The spelling of 866434768336 in words is "eight hundred sixty-six billion, four hundred thirty-four million, seven hundred sixty-eight thousand, three hundred thirty-six".