19968536513596 has 24 divisors (see below), whose sum is σ = 38134775943936. Its totient is φ = 9073506454320.

The previous prime is 19968536513593. The next prime is 19968536513599. The reversal of 19968536513596 is 69531563586991.

It is an interprime number because it is at equal distance from previous prime (19968536513593) and next prime (19968536513599).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19968536513593) 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, 77396046 + ... + 77653621.

It is an arithmetic number, because the mean of its divisors is an integer number (1588948997664).

Almost surely, 2^{19968536513596} is an apocalyptic number.

It is an amenable number.

19968536513596 is a deficient number, since it is larger than the sum of its proper divisors (18166239430340).

19968536513596 is a wasteful number, since it uses less digits than its factorization.

19968536513596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155052609 (or 155052607 counting only the distinct ones).

The product of its digits is 1417176000, while the sum is 76.

The spelling of 19968536513596 in words is "nineteen trillion, nine hundred sixty-eight billion, five hundred thirty-six million, five hundred thirteen thousand, five hundred ninety-six".