205422155052 has 48 divisors (see below), whose sum is σ = 502639062240. Its totient is φ = 65207213568.

The previous prime is 205422155033. The next prime is 205422155083. The reversal of 205422155052 is 250551224502.

It is a happy 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, 4017703 + ... + 4068510.

It is an arithmetic number, because the mean of its divisors is an integer number (10471647130).

Almost surely, 2^205422155052 is an apocalyptic number.

It is an amenable number.

205422155052 is an abundant number, since it is smaller than the sum of its proper divisors (297216907188).

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

205422155052 is a wasteful number, since it uses less digits than its factorization.

205422155052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8086322 (or 8086320 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 33.

Adding to 205422155052 its reverse (250551224502), we get a palindrome (455973379554).

The spelling of 205422155052 in words is "two hundred five billion, four hundred twenty-two million, one hundred fifty-five thousand, fifty-two".