206613608764 has 12 divisors (see below), whose sum is σ = 382842863424. Its totient is φ = 97229933504.

The previous prime is 206613608723. The next prime is 206613608767. The reversal of 206613608764 is 467806316602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206613608767) 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 3 ways as a sum of consecutive naturals, for example, 1519217644 + ... + 1519217779.

It is an arithmetic number, because the mean of its divisors is an integer number (31903571952).

Almost surely, 2^206613608764 is an apocalyptic number.

It is an amenable number.

206613608764 is a deficient number, since it is larger than the sum of its proper divisors (176229254660).

206613608764 is a wasteful number, since it uses less digits than its factorization.

206613608764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3038435444 (or 3038435442 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 49.

The spelling of 206613608764 in words is "two hundred six billion, six hundred thirteen million, six hundred eight thousand, seven hundred sixty-four".