19903716163 has 8 divisors (see below), whose sum is σ = 20051870400. Its totient is φ = 19756092840.

The previous prime is 19903716097. The next prime is 19903716199. The reversal of 19903716163 is 36161730991.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19903716163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19903713163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57313 + ... + 207586.

It is an arithmetic number, because the mean of its divisors is an integer number (2506483800).

Almost surely, 2^19903716163 is an apocalyptic number.

19903716163 is a deficient number, since it is larger than the sum of its proper divisors (148154237).

19903716163 is a wasteful number, since it uses less digits than its factorization.

19903716163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265457.

The product of its (nonzero) digits is 183708, while the sum is 46.

The spelling of 19903716163 in words is "nineteen billion, nine hundred three million, seven hundred sixteen thousand, one hundred sixty-three".