206444222442 has 24 divisors (see below), whose sum is σ = 449077880160. Its totient is φ = 68540577000.

The previous prime is 206444222437. The next prime is 206444222443. The reversal of 206444222442 is 244222444602.

206444222442 is a `hidden beast` number, since 2 + 0 + 644 + 4 + 2 + 2 + 2 + 4 + 4 + 2 = 666.

It is a super-3 number, since 3×206444222442³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 206444222397 and 206444222406.

It is not an unprimeable number, because it can be changed into a prime (206444222443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22842342 + ... + 22851377.

It is an arithmetic number, because the mean of its divisors is an integer number (18711578340).

Almost surely, 2^206444222442 is an apocalyptic number.

206444222442 is an abundant number, since it is smaller than the sum of its proper divisors (242633657718).

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

206444222442 is a wasteful number, since it uses less digits than its factorization.

206444222442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45693978 (or 45693975 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 36.

The spelling of 206444222442 in words is "two hundred six billion, four hundred forty-four million, two hundred twenty-two thousand, four hundred forty-two".