654043063663 has 4 divisors (see below), whose sum is σ = 713501524008. Its totient is φ = 594584603320.

The previous prime is 654043063631. The next prime is 654043063703. The reversal of 654043063663 is 366360340456.

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 654043063663 - 2⁵ = 654043063631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654043063363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29729230156 + ... + 29729230177.

It is an arithmetic number, because the mean of its divisors is an integer number (178375381002).

Almost surely, 2^654043063663 is an apocalyptic number.

654043063663 is a deficient number, since it is larger than the sum of its proper divisors (59458460345).

654043063663 is a wasteful number, since it uses less digits than its factorization.

654043063663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59458460344.

The product of its (nonzero) digits is 2799360, while the sum is 46.

The spelling of 654043063663 in words is "six hundred fifty-four billion, forty-three million, sixty-three thousand, six hundred sixty-three".