205425322411434 has 32 divisors (see below), whose sum is σ = 436442017704000. Its totient is φ = 64276006235904.

The previous prime is 205425322411429. The next prime is 205425322411451. The reversal of 205425322411434 is 434114223524502.

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, 8265934879 + ... + 8265959730.

It is an arithmetic number, because the mean of its divisors is an integer number (13638813053250).

Almost surely, 2^{205425322411434} is an apocalyptic number.

205425322411434 is an abundant number, since it is smaller than the sum of its proper divisors (231016695292566).

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

205425322411434 is a wasteful number, since it uses less digits than its factorization.

205425322411434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16531894742.

The product of its (nonzero) digits is 921600, while the sum is 42.

Adding to 205425322411434 its reverse (434114223524502), we get a palindrome (639539545935936).

The spelling of 205425322411434 in words is "two hundred five trillion, four hundred twenty-five billion, three hundred twenty-two million, four hundred eleven thousand, four hundred thirty-four".