206123806165422 has 16 divisors (see below), whose sum is σ = 412254625600512. Its totient is φ = 68706766510200.

The previous prime is 206123806165399. The next prime is 206123806165441. The reversal of 206123806165422 is 224561608321602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291837454 + ... + 292542897.

It is an arithmetic number, because the mean of its divisors is an integer number (25765914100032).

Almost surely, 2^{206123806165422} is an apocalyptic number.

206123806165422 is an abundant number, since it is smaller than the sum of its proper divisors (206130819435090).

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

206123806165422 is a wasteful number, since it uses less digits than its factorization.

206123806165422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584439143.

The product of its (nonzero) digits is 1658880, while the sum is 48.

The spelling of 206123806165422 in words is "two hundred six trillion, one hundred twenty-three billion, eight hundred six million, one hundred sixty-five thousand, four hundred twenty-two".