206422066664 has 64 divisors (see below), whose sum is σ = 443234764800. Its totient is φ = 89262417600.

The previous prime is 206422066663. The next prime is 206422066693. The reversal of 206422066664 is 466660224602.

206422066664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×206422066664² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (206422066663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 480302 + ... + 802205.

It is an arithmetic number, because the mean of its divisors is an integer number (6925543200).

Almost surely, 2^206422066664 is an apocalyptic number.

It is an amenable number.

206422066664 is an abundant number, since it is smaller than the sum of its proper divisors (236812698136).

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

206422066664 is a wasteful number, since it uses less digits than its factorization.

206422066664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282614 (or 1282610 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 44.

The spelling of 206422066664 in words is "two hundred six billion, four hundred twenty-two million, sixty-six thousand, six hundred sixty-four".