205210033045 has 24 divisors (see below), whose sum is σ = 263184802560. Its totient is φ = 153558793440.

The previous prime is 205210033013. The next prime is 205210033051. The reversal of 205210033045 is 540330012502.

It is not a de Polignac number, because 205210033045 - 2⁵ = 205210033013 is a prime.

It is a super-2 number, since 2×205210033045² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 576961 + ... + 862150.

It is an arithmetic number, because the mean of its divisors is an integer number (10966033440).

Almost surely, 2^205210033045 is an apocalyptic number.

It is an amenable number.

205210033045 is a deficient number, since it is larger than the sum of its proper divisors (57974769515).

205210033045 is a wasteful number, since it uses less digits than its factorization.

205210033045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439233 (or 1439214 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 205210033045 its reverse (540330012502), we get a palindrome (745540045547).

The spelling of 205210033045 in words is "two hundred five billion, two hundred ten million, thirty-three thousand, forty-five".