206122554604 has 6 divisors (see below), whose sum is σ = 360714470564. Its totient is φ = 103061277300.

The previous prime is 206122554593. The next prime is 206122554637. The reversal of 206122554604 is 406455221602.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25765319322 + ... + 25765319329.

Almost surely, 2^206122554604 is an apocalyptic number.

It is an amenable number.

206122554604 is a deficient number, since it is larger than the sum of its proper divisors (154591915960).

206122554604 is a wasteful number, since it uses less digits than its factorization.

206122554604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51530638655 (or 51530638653 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 206122554604 in words is "two hundred six billion, one hundred twenty-two million, five hundred fifty-four thousand, six hundred four".