56643555163 has 8 divisors (see below), whose sum is σ = 62034663600. Its totient is φ = 51400148448.

The previous prime is 56643555151. The next prime is 56643555173. The reversal of 56643555163 is 36155534665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56643555163 - 2²⁹ = 56106684251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56643555173) 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 7 ways as a sum of consecutive naturals, for example, 36924628 + ... + 36926161.

It is an arithmetic number, because the mean of its divisors is an integer number (7754332950).

Almost surely, 2^56643555163 is an apocalyptic number.

56643555163 is a deficient number, since it is larger than the sum of its proper divisors (5391108437).

56643555163 is a wasteful number, since it uses less digits than its factorization.

56643555163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73850861.

The product of its digits is 4860000, while the sum is 49.

The spelling of 56643555163 in words is "fifty-six billion, six hundred forty-three million, five hundred fifty-five thousand, one hundred sixty-three".