663112451 has 4 divisors (see below), whose sum is σ = 663175992. Its totient is φ = 663048912.

The previous prime is 663112433. The next prime is 663112453. The reversal of 663112451 is 154211366.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 663112451 - 2²⁶ = 596003587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663112453) 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 in 3 ways as a sum of consecutive naturals, for example, 12026 + ... + 38351.

It is an arithmetic number, because the mean of its divisors is an integer number (165793998).

Almost surely, 2^663112451 is an apocalyptic number.

663112451 is a deficient number, since it is larger than the sum of its proper divisors (63541).

663112451 is a wasteful number, since it uses less digits than its factorization.

663112451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63540.

The product of its digits is 4320, while the sum is 29.

The square root of 663112451 is about 25750.9699040638. The cubic root of 663112451 is about 872.0252509837.

The spelling of 663112451 in words is "six hundred sixty-three million, one hundred twelve thousand, four hundred fifty-one".