16991282840 has 64 divisors (see below), whose sum is σ = 43711488000. Its totient is φ = 5822967168.

The previous prime is 16991282839. The next prime is 16991282863. The reversal of 16991282840 is 4828219961.

16991282840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 672761 + ... + 697559.

It is an arithmetic number, because the mean of its divisors is an integer number (682992000).

Almost surely, 2^16991282840 is an apocalyptic number.

16991282840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16991282840 is an abundant number, since it is smaller than the sum of its proper divisors (26720205160).

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

16991282840 is a wasteful number, since it uses less digits than its factorization.

16991282840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27264 (or 27260 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 50.

The spelling of 16991282840 in words is "sixteen billion, nine hundred ninety-one million, two hundred eighty-two thousand, eight hundred forty".