206562222656 has 28 divisors (see below), whose sum is σ = 424031290620. Its totient is φ = 99719692800.

The previous prime is 206562222611. The next prime is 206562222707. The reversal of 206562222656 is 656222265602.

It can be written as a sum of positive squares in 2 ways, for example, as 66865685056 + 139696537600 = 258584^2 + 373760^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55645295 + ... + 55649006.

It is an arithmetic number, because the mean of its divisors is an integer number (15143974665).

Almost surely, 2^206562222656 is an apocalyptic number.

It is an amenable number.

206562222656 is an abundant number, since it is smaller than the sum of its proper divisors (217469067964).

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

206562222656 is a wasteful number, since it uses less digits than its factorization.

206562222656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111294342 (or 111294332 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 206562222656 in words is "two hundred six billion, five hundred sixty-two million, two hundred twenty-two thousand, six hundred fifty-six".