205638351346200 has 96 divisors (see below), whose sum is σ = 674977647393360. Its totient is φ = 51611194060800.

The previous prime is 205638351346147. The next prime is 205638351346223. The reversal of 205638351346200 is 2643153836502.

It is a self number, because there is not a number n which added to its sum of digits gives 205638351346200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10080301141 + ... + 10080321540.

Almost surely, 2^{205638351346200} is an apocalyptic number.

205638351346200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205638351346200 is an abundant number, since it is smaller than the sum of its proper divisors (469339296047160).

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

205638351346200 is a wasteful number, since it uses less digits than its factorization.

205638351346200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20160622717 (or 20160622708 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 48.

The spelling of 205638351346200 in words is "two hundred five trillion, six hundred thirty-eight billion, three hundred fifty-one million, three hundred forty-six thousand, two hundred".