205799371616 has 48 divisors (see below), whose sum is σ = 407935297728. Its totient is φ = 102197635200.

The previous prime is 205799371607. The next prime is 205799371627. The reversal of 205799371616 is 616173997502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7972811 + ... + 7998581.

It is an arithmetic number, because the mean of its divisors is an integer number (8498652036).

Almost surely, 2^205799371616 is an apocalyptic number.

It is an amenable number.

205799371616 is a deficient number, since it is larger than the sum of its proper divisors (202135926112).

205799371616 is a wasteful number, since it uses less digits than its factorization.

205799371616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27475 (or 27467 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 56.

The spelling of 205799371616 in words is "two hundred five billion, seven hundred ninety-nine million, three hundred seventy-one thousand, six hundred sixteen".