205442333055 has 48 divisors (see below), whose sum is σ = 367789346496. Its totient is φ = 106029181440.

The previous prime is 205442333029. The next prime is 205442333149. The reversal of 205442333055 is 550333244502.

205442333055 is a `hidden beast` number, since 2 + 0 + 544 + 2 + 33 + 30 + 55 = 666.

It is not a de Polignac number, because 205442333055 - 2¹⁶ = 205442267519 is a prime.

It is a super-2 number, since 2×205442333055² (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 47 ways as a sum of consecutive naturals, for example, 415891 + ... + 764100.

It is an arithmetic number, because the mean of its divisors is an integer number (7662278052).

Almost surely, 2^205442333055 is an apocalyptic number.

205442333055 is a deficient number, since it is larger than the sum of its proper divisors (162347013441).

205442333055 is a wasteful number, since it uses less digits than its factorization.

205442333055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180128 (or 1180125 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 36.

Adding to 205442333055 its reverse (550333244502), we get a palindrome (755775577557).

The spelling of 205442333055 in words is "two hundred five billion, four hundred forty-two million, three hundred thirty-three thousand, fifty-five".