206464266064 has 40 divisors (see below), whose sum is σ = 457241181120. Its totient is φ = 88471077888.

The previous prime is 206464266013. The next prime is 206464266077. The reversal of 206464266064 is 460662464602.

It is a happy number.

It is a super-2 number, since 2×206464266064² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607392 + ... + 884224.

It is an arithmetic number, because the mean of its divisors is an integer number (11431029528).

Almost surely, 2^206464266064 is an apocalyptic number.

It is an amenable number.

206464266064 is an abundant number, since it is smaller than the sum of its proper divisors (250776915056).

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

206464266064 is a wasteful number, since it uses less digits than its factorization.

206464266064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283507 (or 283501 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 46.

The spelling of 206464266064 in words is "two hundred six billion, four hundred sixty-four million, two hundred sixty-six thousand, sixty-four".