3205544312545 has 16 divisors (see below), whose sum is σ = 4065909914880. Its totient is φ = 2419384377600.

The previous prime is 3205544312501. The next prime is 3205544312557. The reversal of 3205544312545 is 5452134455023.

It is not a de Polignac number, because 3205544312545 - 2¹¹ = 3205544310497 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 69982441 + ... + 70028230.

It is an arithmetic number, because the mean of its divisors is an integer number (254119369680).

Almost surely, 2^{3205544312545} is an apocalyptic number.

It is an amenable number.

3205544312545 is a deficient number, since it is larger than the sum of its proper divisors (860365602335).

3205544312545 is a wasteful number, since it uses less digits than its factorization.

3205544312545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140010936.

The product of its (nonzero) digits is 1440000, while the sum is 43.

Adding to 3205544312545 its reverse (5452134455023), we get a palindrome (8657678767568).

The spelling of 3205544312545 in words is "three trillion, two hundred five billion, five hundred forty-four million, three hundred twelve thousand, five hundred forty-five".