205055140330 has 16 divisors (see below), whose sum is σ = 369146004480. Its totient is φ = 82011666832.

The previous prime is 205055140259. The next prime is 205055140363. The reversal of 205055140330 is 33041550502.

It is a super-2 number, since 2×205055140330² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1215514 + ... + 1373893.

It is an arithmetic number, because the mean of its divisors is an integer number (23071625280).

Almost surely, 2^205055140330 is an apocalyptic number.

205055140330 is a deficient number, since it is larger than the sum of its proper divisors (164090864150).

205055140330 is a wasteful number, since it uses less digits than its factorization.

205055140330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2597333.

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 205055140330 its reverse (33041550502), we get a palindrome (238096690832).

The spelling of 205055140330 in words is "two hundred five billion, fifty-five million, one hundred forty thousand, three hundred thirty".