663031363 has 2 divisors, whose sum is σ = 663031364. Its totient is φ = 663031362.

The previous prime is 663031349. The next prime is 663031381. The reversal of 663031363 is 363130366.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-663031363 is a prime.

It is a super-2 number, since 2×663031363² = 879221176643275538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (663035363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331515681 + 331515682.

It is an arithmetic number, because the mean of its divisors is an integer number (331515682).

Almost surely, 2^663031363 is an apocalyptic number.

663031363 is a deficient number, since it is larger than the sum of its proper divisors (1).

663031363 is an equidigital number, since it uses as much as digits as its factorization.

663031363 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 31.

The square root of 663031363 is about 25749.3953909602. The cubic root of 663031363 is about 871.9897046417.

The spelling of 663031363 in words is "six hundred sixty-three million, thirty-one thousand, three hundred sixty-three".