19065986920916 has 12 divisors (see below), whose sum is σ = 35932052274132. Its totient is φ = 8799686271168.

The previous prime is 19065986920879. The next prime is 19065986920921. The reversal of 19065986920916 is 61902968956091.

It can be written as a sum of positive squares in 2 ways, for example, as 8364936528400 + 10701050392516 = 2892220^2 + 3271246^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 19065986920916.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183326797265 + ... + 183326797368.

It is an arithmetic number, because the mean of its divisors is an integer number (2994337689511).

Almost surely, 2^{19065986920916} is an apocalyptic number.

It is an amenable number.

19065986920916 is a deficient number, since it is larger than the sum of its proper divisors (16866065353216).

19065986920916 is a wasteful number, since it uses less digits than its factorization.

19065986920916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366653594650 (or 366653594648 counting only the distinct ones).

The product of its (nonzero) digits is 113374080, while the sum is 71.

The spelling of 19065986920916 in words is "nineteen trillion, sixty-five billion, nine hundred eighty-six million, nine hundred twenty thousand, nine hundred sixteen".