663162623 has 2 divisors, whose sum is σ = 663162624. Its totient is φ = 663162622.

The previous prime is 663162607. The next prime is 663162629. The reversal of 663162623 is 326261366.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 663162623 - 2⁴ = 663162607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (663162629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331581311 + 331581312.

It is an arithmetic number, because the mean of its divisors is an integer number (331581312).

Almost surely, 2^663162623 is an apocalyptic number.

663162623 is a deficient number, since it is larger than the sum of its proper divisors (1).

663162623 is an equidigital number, since it uses as much as digits as its factorization.

663162623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 35.

The square root of 663162623 is about 25751.9440625363. The cubic root of 663162623 is about 872.0472433056.

The spelling of 663162623 in words is "six hundred sixty-three million, one hundred sixty-two thousand, six hundred twenty-three".