206155261543622 has 16 divisors (see below), whose sum is σ = 309927178875600. Its totient is φ = 102846210173952.

The previous prime is 206155261543409. The next prime is 206155261543687. The reversal of 206155261543622 is 226345162551602.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48605453 + ... + 52676375.

It is an arithmetic number, because the mean of its divisors is an integer number (19370448679725).

Almost surely, 2^{206155261543622} is an apocalyptic number.

206155261543622 is a deficient number, since it is larger than the sum of its proper divisors (103771917331978).

206155261543622 is a wasteful number, since it uses less digits than its factorization.

206155261543622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4127767.

The product of its (nonzero) digits is 5184000, while the sum is 50.

The spelling of 206155261543622 in words is "two hundred six trillion, one hundred fifty-five billion, two hundred sixty-one million, five hundred forty-three thousand, six hundred twenty-two".