16055503980 has 48 divisors (see below), whose sum is σ = 46170428640. Its totient is φ = 4165751808.

The previous prime is 16055503979. The next prime is 16055504027. The reversal of 16055503980 is 8930555061.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3613885 + ... + 3618324.

It is an arithmetic number, because the mean of its divisors is an integer number (961883930).

Almost surely, 2^16055503980 is an apocalyptic number.

16055503980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16055503980 is an abundant number, since it is smaller than the sum of its proper divisors (30114924660).

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

16055503980 is a wasteful number, since it uses less digits than its factorization.

16055503980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7232258 (or 7232256 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 16055503980 in words is "sixteen billion, fifty-five million, five hundred three thousand, nine hundred eighty".