19920662099519 has 8 divisors (see below), whose sum is σ = 19974591431520. Its totient is φ = 19866735563616.

The previous prime is 19920662099497. The next prime is 19920662099551. The reversal of 19920662099519 is 91599026602991.

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-19920662099519 is a prime.

It is a super-2 number, since 2×19920662099519² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19920662099599) 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, 13986062 + ... + 15344420.

It is an arithmetic number, because the mean of its divisors is an integer number (2496823928940).

Almost surely, 2^{19920662099519} is an apocalyptic number.

19920662099519 is a deficient number, since it is larger than the sum of its proper divisors (53929332001).

19920662099519 is a wasteful number, since it uses less digits than its factorization.

19920662099519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398049.

The product of its (nonzero) digits is 42515280, while the sum is 68.

The spelling of 19920662099519 in words is "nineteen trillion, nine hundred twenty billion, six hundred sixty-two million, ninety-nine thousand, five hundred nineteen".