205006766 has 4 divisors (see below), whose sum is σ = 307510152. Its totient is φ = 102503382.

The previous prime is 205006759. The next prime is 205006793. The reversal of 205006766 is 667600502.

205006766 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51251690 + ... + 51251693.

It is an arithmetic number, because the mean of its divisors is an integer number (76877538).

Almost surely, 2^205006766 is an apocalyptic number.

205006766 is a deficient number, since it is larger than the sum of its proper divisors (102503386).

205006766 is a wasteful number, since it uses less digits than its factorization.

205006766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102503385.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 205006766 is about 14318.0573402959. The cubic root of 205006766 is about 589.6433408898.

The spelling of 205006766 in words is "two hundred five million, six thousand, seven hundred sixty-six".