19958961163 has 8 divisors (see below), whose sum is σ = 21233178000. Its totient is φ = 18695873280.

The previous prime is 19958961157. The next prime is 19958961193. The reversal of 19958961163 is 36116985991.

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-19958961163 is a prime.

It is a super-2 number, since 2×19958961163² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19958961098 and 19958961107.

It is not an unprimeable number, because it can be changed into a prime (19958961133) 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, 2778538 + ... + 2785711.

It is an arithmetic number, because the mean of its divisors is an integer number (2654147250).

Almost surely, 2^19958961163 is an apocalyptic number.

19958961163 is a deficient number, since it is larger than the sum of its proper divisors (1274216837).

19958961163 is a wasteful number, since it uses less digits than its factorization.

19958961163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5564477.

The product of its digits is 3149280, while the sum is 58.

The spelling of 19958961163 in words is "nineteen billion, nine hundred fifty-eight million, nine hundred sixty-one thousand, one hundred sixty-three".