65745209603 has 4 divisors (see below), whose sum is σ = 67866022848. Its totient is φ = 63624396360.

The previous prime is 65745209489. The next prime is 65745209611. The reversal of 65745209603 is 30690254756.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65745209603 - 2⁸ = 65745209347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65745209623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1060406576 + ... + 1060406637.

It is an arithmetic number, because the mean of its divisors is an integer number (16966505712).

Almost surely, 2^65745209603 is an apocalyptic number.

65745209603 is a deficient number, since it is larger than the sum of its proper divisors (2120813245).

65745209603 is a wasteful number, since it uses less digits than its factorization.

65745209603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120813244.

The product of its (nonzero) digits is 1360800, while the sum is 47.

The spelling of 65745209603 in words is "sixty-five billion, seven hundred forty-five million, two hundred nine thousand, six hundred three".