206242622244 has 18 divisors (see below), whose sum is σ = 521335517430. Its totient is φ = 68747540736.

The previous prime is 206242622233. The next prime is 206242622281. The reversal of 206242622244 is 442226242602.

206242622244 is a `hidden beast` number, since 2 + 0 + 6 + 2 + 4 + 2 + 622 + 24 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 197455809600 + 8786812644 = 444360^2 + 93738^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 5728961729 = 206242622244 / (2 + 0 + 6 + 2 + 4 + 2 + 6 + 2 + 2 + 2 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 206242622199 and 206242622208.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2864480829 + ... + 2864480900.

Almost surely, 2^206242622244 is an apocalyptic number.

It is an amenable number.

206242622244 is an abundant number, since it is smaller than the sum of its proper divisors (315092895186).

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

206242622244 is a wasteful number, since it uses less digits than its factorization.

206242622244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5728961739 (or 5728961734 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 206242622244 its reverse (442226242602), we get a palindrome (648468864846).

The spelling of 206242622244 in words is "two hundred six billion, two hundred forty-two million, six hundred twenty-two thousand, two hundred forty-four".