10000321663 has 2 divisors, whose sum is σ = 10000321664. Its totient is φ = 10000321662.

The previous prime is 10000321637. The next prime is 10000321679. The reversal of 10000321663 is 36612300001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10000321663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10000321693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000160831 + 5000160832.

It is an arithmetic number, because the mean of its divisors is an integer number (5000160832).

Almost surely, 2^10000321663 is an apocalyptic number.

10000321663 is a deficient number, since it is larger than the sum of its proper divisors (1).

10000321663 is an equidigital number, since it uses as much as digits as its factorization.

10000321663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 10000321663 its reverse (36612300001), we get a palindrome (46612621664).

The spelling of 10000321663 in words is "ten billion, three hundred twenty-one thousand, six hundred sixty-three".