63943244161 has 8 divisors (see below), whose sum is σ = 65518538400. Its totient is φ = 62368697760.

The previous prime is 63943244129. The next prime is 63943244177. The reversal of 63943244161 is 16144234936.

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 63943244161 - 2⁵ = 63943244129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63943214161) 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, 11851 + ... + 357808.

It is an arithmetic number, because the mean of its divisors is an integer number (8189817300).

Almost surely, 2^63943244161 is an apocalyptic number.

It is an amenable number.

63943244161 is a deficient number, since it is larger than the sum of its proper divisors (1575294239).

63943244161 is a wasteful number, since it uses less digits than its factorization.

63943244161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373919.

The product of its digits is 373248, while the sum is 43.

The spelling of 63943244161 in words is "sixty-three billion, nine hundred forty-three million, two hundred forty-four thousand, one hundred sixty-one".