206668692 has 48 divisors (see below), whose sum is σ = 553100800. Its totient is φ = 66666240.

The previous prime is 206668667. The next prime is 206668699. The reversal of 206668692 is 296866602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206668699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27517 + ... + 34212.

Almost surely, 2^206668692 is an apocalyptic number.

It is an amenable number.

206668692 is an abundant number, since it is smaller than the sum of its proper divisors (346432108).

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

206668692 is a wasteful number, since it uses less digits than its factorization.

206668692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61773 (or 61765 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 206668692 is about 14375.9762103309. The cubic root of 206668692 is about 591.2324062126.

The spelling of 206668692 in words is "two hundred six million, six hundred sixty-eight thousand, six hundred ninety-two".