16869583816 has 16 divisors (see below), whose sum is σ = 31920659100. Its totient is φ = 8357408064.

The previous prime is 16869583799. The next prime is 16869583831. The reversal of 16869583816 is 61838596861.

It can be written as a sum of positive squares in 2 ways, for example, as 14813324100 + 2056259716 = 121710^2 + 45346^2 .

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, 9672055 + ... + 9673798.

Almost surely, 2^16869583816 is an apocalyptic number.

It is an amenable number.

16869583816 is a deficient number, since it is larger than the sum of its proper divisors (15051075284).

16869583816 is a wasteful number, since it uses less digits than its factorization.

16869583816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19345968 (or 19345964 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 61.

The spelling of 16869583816 in words is "sixteen billion, eight hundred sixty-nine million, five hundred eighty-three thousand, eight hundred sixteen".