16503805860 has 48 divisors (see below), whose sum is σ = 46221717696. Its totient is φ = 4399961472.

The previous prime is 16503805831. The next prime is 16503805937. The reversal of 16503805860 is 6850830561.

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 15 ways as a sum of consecutive naturals, for example, 238302 + ... + 299658.

It is an arithmetic number, because the mean of its divisors is an integer number (962952452).

Almost surely, 2^16503805860 is an apocalyptic number.

16503805860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16503805860 is an abundant number, since it is smaller than the sum of its proper divisors (29717911836).

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

16503805860 is a wasteful number, since it uses less digits than its factorization.

16503805860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65852 (or 65850 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 16503805860 in words is "sixteen billion, five hundred three million, eight hundred five thousand, eight hundred sixty".