65662320440003 has 32 divisors (see below), whose sum is σ = 78956618833920. Its totient is φ = 53414039952000.

The previous prime is 65662320439979. The next prime is 65662320440027. The reversal of 65662320440003 is 30004402326656.

It is an interprime number because it is at equal distance from previous prime (65662320439979) and next prime (65662320440027).

It is not a de Polignac number, because 65662320440003 - 2²² = 65662316245699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65662320440303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16413008 + ... + 20017778.

It is an arithmetic number, because the mean of its divisors is an integer number (2467394338560).

Almost surely, 2^{65662320440003} is an apocalyptic number.

65662320440003 is a deficient number, since it is larger than the sum of its proper divisors (13294298393917).

65662320440003 is a wasteful number, since it uses less digits than its factorization.

65662320440003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3606339.

The product of its (nonzero) digits is 622080, while the sum is 41.

Adding to 65662320440003 its reverse (30004402326656), we get a palindrome (95666722766659).

The spelling of 65662320440003 in words is "sixty-five trillion, six hundred sixty-two billion, three hundred twenty million, four hundred forty thousand, three".