19116889066 has 16 divisors (see below), whose sum is σ = 31350055968. Its totient is φ = 8670641200.

The previous prime is 19116889037. The next prime is 19116889111. The reversal of 19116889066 is 66098861191.

It is a junction number, because it is equal to n+sod(n) for n = 19116888998 and 19116889016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 932320 + ... + 952603.

It is an arithmetic number, because the mean of its divisors is an integer number (1959378498).

Almost surely, 2^19116889066 is an apocalyptic number.

19116889066 is a deficient number, since it is larger than the sum of its proper divisors (12233166902).

19116889066 is a wasteful number, since it uses less digits than its factorization.

19116889066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885397.

The product of its (nonzero) digits is 1119744, while the sum is 55.

The spelling of 19116889066 in words is "nineteen billion, one hundred sixteen million, eight hundred eighty-nine thousand, sixty-six".