320242201663 has 2 divisors, whose sum is σ = 320242201664. Its totient is φ = 320242201662.

The previous prime is 320242201633. The next prime is 320242201753. The reversal of 320242201663 is 366102242023.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320242201663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320242201633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160121100831 + 160121100832.

It is an arithmetic number, because the mean of its divisors is an integer number (160121100832).

Almost surely, 2^320242201663 is an apocalyptic number.

320242201663 is a deficient number, since it is larger than the sum of its proper divisors (1).

320242201663 is an equidigital number, since it uses as much as digits as its factorization.

320242201663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 320242201663 its reverse (366102242023), we get a palindrome (686344443686).

The spelling of 320242201663 in words is "three hundred twenty billion, two hundred forty-two million, two hundred one thousand, six hundred sixty-three".