6654554563 has 2 divisors, whose sum is σ = 6654554564. Its totient is φ = 6654554562.

The previous prime is 6654554561. The next prime is 6654554587. The reversal of 6654554563 is 3654554566.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6654554563 - 2¹ = 6654554561 is a prime.

Together with 6654554561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6654554561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3327277281 + 3327277282.

It is an arithmetic number, because the mean of its divisors is an integer number (3327277282).

Almost surely, 2^6654554563 is an apocalyptic number.

6654554563 is a deficient number, since it is larger than the sum of its proper divisors (1).

6654554563 is an equidigital number, since it uses as much as digits as its factorization.

6654554563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480000, while the sum is 49.

The square root of 6654554563 is about 81575.4531890568. The cubic root of 6654554563 is about 1880.9315742066.

The spelling of 6654554563 in words is "six billion, six hundred fifty-four million, five hundred fifty-four thousand, five hundred sixty-three".