16516420144 has 40 divisors (see below), whose sum is σ = 36597102080. Its totient is φ = 7073621568.

The previous prime is 16516420139. The next prime is 16516420183. The reversal of 16516420144 is 44102461561.

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, 116377 + ... + 215815.

It is an arithmetic number, because the mean of its divisors is an integer number (914927552).

Almost surely, 2^16516420144 is an apocalyptic number.

16516420144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16516420144 is an abundant number, since it is smaller than the sum of its proper divisors (20080681936).

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

16516420144 is a wasteful number, since it uses less digits than its factorization.

16516420144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100937 (or 100931 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 16516420144 in words is "sixteen billion, five hundred sixteen million, four hundred twenty thousand, one hundred forty-four".