205241385944 has 32 divisors (see below), whose sum is σ = 439828147200. Its totient is φ = 87955558560.

The previous prime is 205241385931. The next prime is 205241385961. The reversal of 205241385944 is 449583142502.

It is a super-2 number, since 2×205241385944² (a number of 23 digits) contains 22 as substring.

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, 981647 + ... + 1172225.

It is an arithmetic number, because the mean of its divisors is an integer number (13744629600).

Almost surely, 2^205241385944 is an apocalyptic number.

It is an amenable number.

205241385944 is an abundant number, since it is smaller than the sum of its proper divisors (234586761256).

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

205241385944 is a wasteful number, since it uses less digits than its factorization.

205241385944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209823 (or 209819 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 205241385944 in words is "two hundred five billion, two hundred forty-one million, three hundred eighty-five thousand, nine hundred forty-four".