16799851980 has 60 divisors (see below), whose sum is σ = 52701762960. Its totient is φ = 4479960096.

The previous prime is 16799851969. The next prime is 16799851987. The reversal of 16799851980 is 8915899761.

It is a tau number, because it is divible by the number of its divisors (60).

It is not an unprimeable number, because it can be changed into a prime (16799851987) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 5183520 + ... + 5186759.

It is an arithmetic number, because the mean of its divisors is an integer number (878362716).

Almost surely, 2^16799851980 is an apocalyptic number.

16799851980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16799851980 is an abundant number, since it is smaller than the sum of its proper divisors (35901910980).

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

16799851980 is a wasteful number, since it uses less digits than its factorization.

16799851980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10370300 (or 10370289 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 63.

The spelling of 16799851980 in words is "sixteen billion, seven hundred ninety-nine million, eight hundred fifty-one thousand, nine hundred eighty".