663115023 has 6 divisors (see below), whose sum is σ = 957832824. Its totient is φ = 442076676.

The previous prime is 663114979. The next prime is 663115031. The reversal of 663115023 is 320511366.

663115023 is a `hidden beast` number, since 6 + 631 + 1 + 5 + 0 + 23 = 666.

663115023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 663115023 - 2¹⁰ = 663113999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663115043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36839715 + ... + 36839732.

It is an arithmetic number, because the mean of its divisors is an integer number (159638804).

Almost surely, 2^663115023 is an apocalyptic number.

663115023 is a deficient number, since it is larger than the sum of its proper divisors (294717801).

663115023 is a wasteful number, since it uses less digits than its factorization.

663115023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73679453 (or 73679450 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 663115023 is about 25751.0198438819. The cubic root of 663115023 is about 872.0263784174.

Adding to 663115023 its reverse (320511366), we get a palindrome (983626389).

The spelling of 663115023 in words is "six hundred sixty-three million, one hundred fifteen thousand, twenty-three".