206426226204 has 72 divisors (see below), whose sum is σ = 569316344688. Its totient is φ = 62544568320.

The previous prime is 206426226197. The next prime is 206426226233. The reversal of 206426226204 is 402622624602.

206426226204 is a `hidden beast` number, since 2 + 0 + 6 + 4 + 2 + 6 + 22 + 620 + 4 = 666.

It is a super-2 number, since 2×206426226204² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3110214 + ... + 3175890.

It is an arithmetic number, because the mean of its divisors is an integer number (7907171454).

Almost surely, 2^206426226204 is an apocalyptic number.

It is an amenable number.

206426226204 is an abundant number, since it is smaller than the sum of its proper divisors (362890118484).

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

206426226204 is a wasteful number, since it uses less digits than its factorization.

206426226204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73635 (or 73630 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The spelling of 206426226204 in words is "two hundred six billion, four hundred twenty-six million, two hundred twenty-six thousand, two hundred four".