205245321444130 has 32 divisors (see below), whose sum is σ = 408548096898048. Its totient is φ = 73612269705600.

The previous prime is 205245321444113. The next prime is 205245321444151. The reversal of 205245321444130 is 31444123542502.

It is a super-2 number, since 2×205245321444130² (a number of 29 digits) contains 22 as substring.

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, 12779899906 + ... + 12779915965.

It is an arithmetic number, because the mean of its divisors is an integer number (12767128028064).

Almost surely, 2^{205245321444130} is an apocalyptic number.

205245321444130 is a deficient number, since it is larger than the sum of its proper divisors (203302775453918).

205245321444130 is a wasteful number, since it uses less digits than its factorization.

205245321444130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25559815962.

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 205245321444130 its reverse (31444123542502), we get a palindrome (236689444986632).

The spelling of 205245321444130 in words is "two hundred five trillion, two hundred forty-five billion, three hundred twenty-one million, four hundred forty-four thousand, one hundred thirty".