663083081 has 2 divisors, whose sum is σ = 663083082. Its totient is φ = 663083080.

The previous prime is 663083041. The next prime is 663083101. The reversal of 663083081 is 180380366.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 629257225 + 33825856 = 25085^2 + 5816^2 .

It is a cyclic number.

It is not a de Polignac number, because 663083081 - 2¹⁴ = 663066697 is a prime.

It is a super-2 number, since 2×663083081² = 879358344616905122, which contains 22 as substring.

It is a Chen prime.

It is equal to p_34438058 and since 663083081 and 34438058 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (663083021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331541540 + 331541541.

It is an arithmetic number, because the mean of its divisors is an integer number (331541541).

Almost surely, 2^663083081 is an apocalyptic number.

It is an amenable number.

663083081 is a deficient number, since it is larger than the sum of its proper divisors (1).

663083081 is an equidigital number, since it uses as much as digits as its factorization.

663083081 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 35.

The square root of 663083081 is about 25750.3996279669. The cubic root of 663083081 is about 872.0123764656.

The spelling of 663083081 in words is "six hundred sixty-three million, eighty-three thousand, eighty-one".