206642240604 has 72 divisors (see below), whose sum is σ = 526702176000. Its totient is φ = 68307002400.

The previous prime is 206642240579. The next prime is 206642240647. The reversal of 206642240604 is 406042246602.

206642240604 is a `hidden beast` number, since 2 + 0 + 6 + 6 + 4 + 2 + 2 + 40 + 604 = 666.

206642240604 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7054669 + ... + 7083899.

It is an arithmetic number, because the mean of its divisors is an integer number (7315308000).

Almost surely, 2^206642240604 is an apocalyptic number.

It is an amenable number.

206642240604 is an abundant number, since it is smaller than the sum of its proper divisors (320059935396).

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

206642240604 is a wasteful number, since it uses less digits than its factorization.

206642240604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30871 (or 30866 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The spelling of 206642240604 in words is "two hundred six billion, six hundred forty-two million, two hundred forty thousand, six hundred four".