206604441631 has 8 divisors (see below), whose sum is σ = 238457178144. Its totient is φ = 175336159200.

The previous prime is 206604441619. The next prime is 206604441649. The reversal of 206604441631 is 136144406602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206604441631 - 2²⁵ = 206570887199 is a prime.

It is a super-2 number, since 2×206604441631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206604441611) 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 7 ways as a sum of consecutive naturals, for example, 146112760 + ... + 146114173.

It is an arithmetic number, because the mean of its divisors is an integer number (29807147268).

Almost surely, 2^206604441631 is an apocalyptic number.

206604441631 is a deficient number, since it is larger than the sum of its proper divisors (31852736513).

206604441631 is a wasteful number, since it uses less digits than its factorization.

206604441631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292227041.

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 206604441631 in words is "two hundred six billion, six hundred four million, four hundred forty-one thousand, six hundred thirty-one".