206121168 has 60 divisors (see below), whose sum is σ = 629299008. Its totient is φ = 62460480.

The previous prime is 206121151. The next prime is 206121169. The reversal of 206121168 is 861121602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206121169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63480 + ... + 66647.

Almost surely, 2^206121168 is an apocalyptic number.

It is an amenable number.

206121168 is an abundant number, since it is smaller than the sum of its proper divisors (423177840).

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

206121168 is a wasteful number, since it uses less digits than its factorization.

206121168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130152 (or 130143 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 206121168 is about 14356.9205611788. The cubic root of 206121168 is about 590.7098303282.

The spelling of 206121168 in words is "two hundred six million, one hundred twenty-one thousand, one hundred sixty-eight".