206422889061 has 32 divisors (see below), whose sum is σ = 281874862080. Its totient is φ = 134310171456.

The previous prime is 206422889047. The next prime is 206422889087. The reversal of 206422889061 is 160988224602.

It is a happy number.

It is not a de Polignac number, because 206422889061 - 2⁷ = 206422888933 is a prime.

It is a super-2 number, since 2×206422889061² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 206422889061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206422889161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142655040 + ... + 142656486.

It is an arithmetic number, because the mean of its divisors is an integer number (8808589440).

Almost surely, 2^206422889061 is an apocalyptic number.

It is an amenable number.

206422889061 is a deficient number, since it is larger than the sum of its proper divisors (75451973019).

206422889061 is a wasteful number, since it uses less digits than its factorization.

206422889061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3633.

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 206422889061 in words is "two hundred six billion, four hundred twenty-two million, eight hundred eighty-nine thousand, sixty-one".