6454660563 has 24 divisors (see below), whose sum is σ = 10569038480. Its totient is φ = 3763039680.

The previous prime is 6454660561. The next prime is 6454660579. The reversal of 6454660563 is 3650664546.

6454660563 is a `hidden beast` number, since 6 + 45 + 46 + 6 + 0 + 563 = 666.

It is not a de Polignac number, because 6454660563 - 2¹ = 6454660561 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (6454660561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1449568 + ... + 1454013.

Almost surely, 2^6454660563 is an apocalyptic number.

6454660563 is a deficient number, since it is larger than the sum of its proper divisors (4114377917).

6454660563 is a wasteful number, since it uses less digits than its factorization.

6454660563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903619 (or 2903616 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 45.

The square root of 6454660563 is about 80340.9021794005. The cubic root of 6454660563 is about 1861.9062203878.

The spelling of 6454660563 in words is "six billion, four hundred fifty-four million, six hundred sixty thousand, five hundred sixty-three".