16868703520 has 48 divisors (see below), whose sum is σ = 40263197688. Its totient is φ = 6677913600.

The previous prime is 16868703497. The next prime is 16868703583. The reversal of 16868703520 is 2530786861.

It can be written as a sum of positive squares in 4 ways, for example, as 15626000016 + 1242703504 = 125004^2 + 35252^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527931 + ... + 558970.

Almost surely, 2^16868703520 is an apocalyptic number.

16868703520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16868703520 is an abundant number, since it is smaller than the sum of its proper divisors (23394494168).

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

16868703520 is a wasteful number, since it uses less digits than its factorization.

16868703520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087013 (or 1087005 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 16868703520 in words is "sixteen billion, eight hundred sixty-eight million, seven hundred three thousand, five hundred twenty".