206444644266 has 64 divisors (see below), whose sum is σ = 490191077376. Its totient is φ = 56735011200.

The previous prime is 206444644201. The next prime is 206444644271. The reversal of 206444644266 is 662446444602.

It is a super-2 number, since 2×206444644266² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 722010 + ... + 966533.

It is an arithmetic number, because the mean of its divisors is an integer number (7659235584).

Almost surely, 2^206444644266 is an apocalyptic number.

206444644266 is an abundant number, since it is smaller than the sum of its proper divisors (283746433110).

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

206444644266 is a wasteful number, since it uses less digits than its factorization.

206444644266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688667.

The product of its (nonzero) digits is 5308416, while the sum is 48.

The spelling of 206444644266 in words is "two hundred six billion, four hundred forty-four million, six hundred forty-four thousand, two hundred sixty-six".