16021440172 has 48 divisors (see below), whose sum is σ = 28828511712. Its totient is φ = 7787819520.

The previous prime is 16021440151. The next prime is 16021440223. The reversal of 16021440172 is 27104412061.

It is a self number, because there is not a number n which added to its sum of digits gives 16021440172.

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, 18694368 + ... + 18695224.

It is an arithmetic number, because the mean of its divisors is an integer number (600593994).

Almost surely, 2^16021440172 is an apocalyptic number.

It is an amenable number.

16021440172 is a deficient number, since it is larger than the sum of its proper divisors (12807071540).

16021440172 is a wasteful number, since it uses less digits than its factorization.

16021440172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618 (or 1616 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The spelling of 16021440172 in words is "sixteen billion, twenty-one million, four hundred forty thousand, one hundred seventy-two".