205411432344 has 64 divisors (see below), whose sum is σ = 543807043200. Its totient is φ = 64434399744.

The previous prime is 205411432319. The next prime is 205411432357. The reversal of 205411432344 is 443234114502.

It is a super-2 number, since 2×205411432344² (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 15 ways as a sum of consecutive naturals, for example, 3589347 + ... + 3646125.

It is an arithmetic number, because the mean of its divisors is an integer number (8496985050).

Almost surely, 2^205411432344 is an apocalyptic number.

205411432344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

205411432344 is an abundant number, since it is smaller than the sum of its proper divisors (338395610856).

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

205411432344 is a wasteful number, since it uses less digits than its factorization.

205411432344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65672 (or 65668 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 205411432344 its reverse (443234114502), we get a palindrome (648645546846).

The spelling of 205411432344 in words is "two hundred five billion, four hundred eleven million, four hundred thirty-two thousand, three hundred forty-four".