6456023663 has 4 divisors (see below), whose sum is σ = 6736720368. Its totient is φ = 6175326960.

The previous prime is 6456023653. The next prime is 6456023671. The reversal of 6456023663 is 3663206546.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6456023663 - 2¹⁶ = 6455958127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6456023663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6456023603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140348318 + ... + 140348363.

It is an arithmetic number, because the mean of its divisors is an integer number (1684180092).

Almost surely, 2^6456023663 is an apocalyptic number.

6456023663 is a deficient number, since it is larger than the sum of its proper divisors (280696705).

6456023663 is a wasteful number, since it uses less digits than its factorization.

6456023663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280696704.

The product of its (nonzero) digits is 466560, while the sum is 41.

The square root of 6456023663 is about 80349.3849571980. The cubic root of 6456023663 is about 1862.0372774077.

The spelling of 6456023663 in words is "six billion, four hundred fifty-six million, twenty-three thousand, six hundred sixty-three".