16287684768 has 120 divisors (see below), whose sum is σ = 50719508532. Its totient is φ = 5109848064.

The previous prime is 16287684733. The next prime is 16287684821. The reversal of 16287684768 is 86748678261.

It can be written as a sum of positive squares in 2 ways, for example, as 13080954384 + 3206730384 = 114372^2 + 56628^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 140755 + ... + 228882.

Almost surely, 2^16287684768 is an apocalyptic number.

16287684768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16287684768 is an abundant number, since it is smaller than the sum of its proper divisors (34431823764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16287684768 is a wasteful number, since it uses less digits than its factorization.

16287684768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369676 (or 369659 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 63.

The spelling of 16287684768 in words is "sixteen billion, two hundred eighty-seven million, six hundred eighty-four thousand, seven hundred sixty-eight".