205899601084 has 6 divisors (see below), whose sum is σ = 360324301904. Its totient is φ = 102949800540.

The previous prime is 205899601069. The next prime is 205899601093. The reversal of 205899601084 is 480106998502.

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, 25737450132 + ... + 25737450139.

Almost surely, 2^205899601084 is an apocalyptic number.

It is an amenable number.

205899601084 is a deficient number, since it is larger than the sum of its proper divisors (154424700820).

205899601084 is a wasteful number, since it uses less digits than its factorization.

205899601084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51474900275 (or 51474900273 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 52.

The spelling of 205899601084 in words is "two hundred five billion, eight hundred ninety-nine million, six hundred one thousand, eighty-four".