205651012 has 12 divisors (see below), whose sum is σ = 411302080. Its totient is φ = 88136136.

The previous prime is 205651007. The next prime is 205651021. The reversal of 205651012 is 210156502.

205651012 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3672312 + ... + 3672367.

Almost surely, 2^205651012 is an apocalyptic number.

It is an amenable number.

205651012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

205651012 is a wasteful number, since it uses less digits than its factorization.

205651012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7344690 (or 7344688 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 205651012 is about 14340.5373678952. The cubic root of 205651012 is about 590.2603581351.

The spelling of 205651012 in words is "two hundred five million, six hundred fifty-one thousand, twelve".