206331320604 has 12 divisors (see below), whose sum is σ = 481439748104. Its totient is φ = 68777106864.

The previous prime is 206331320603. The next prime is 206331320627. The reversal of 206331320604 is 406023133602.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×206331320604² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206331320603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8597138347 + ... + 8597138370.

Almost surely, 2^206331320604 is an apocalyptic number.

It is an amenable number.

206331320604 is an abundant number, since it is smaller than the sum of its proper divisors (275108427500).

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

206331320604 is a wasteful number, since it uses less digits than its factorization.

206331320604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17194276724 (or 17194276722 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

The spelling of 206331320604 in words is "two hundred six billion, three hundred thirty-one million, three hundred twenty thousand, six hundred four".