205422236534 has 4 divisors (see below), whose sum is σ = 308133354804. Its totient is φ = 102711118266.

The previous prime is 205422236519. The next prime is 205422236561. The reversal of 205422236534 is 435632224502.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51355559132 + ... + 51355559135.

It is an arithmetic number, because the mean of its divisors is an integer number (77033338701).

Almost surely, 2^205422236534 is an apocalyptic number.

205422236534 is a deficient number, since it is larger than the sum of its proper divisors (102711118270).

205422236534 is a wasteful number, since it uses less digits than its factorization.

205422236534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102711118269.

The product of its (nonzero) digits is 345600, while the sum is 38.

The spelling of 205422236534 in words is "two hundred five billion, four hundred twenty-two million, two hundred thirty-six thousand, five hundred thirty-four".