866206622 has 16 divisors (see below), whose sum is σ = 1309271040. Its totient is φ = 429791928.

The previous prime is 866206591. The next prime is 866206669. The reversal of 866206622 is 226602668.

866206622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 238343 + ... + 241949.

It is an arithmetic number, because the mean of its divisors is an integer number (81829440).

Almost surely, 2^866206622 is an apocalyptic number.

866206622 is a deficient number, since it is larger than the sum of its proper divisors (443064418).

866206622 is a wasteful number, since it uses less digits than its factorization.

866206622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4495.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 866206622 is about 29431.3883804349. The cubic root of 866206622 is about 953.2507738449.

The spelling of 866206622 in words is "eight hundred sixty-six million, two hundred six thousand, six hundred twenty-two".