16903128172 has 48 divisors (see below), whose sum is σ = 34611808000. Its totient is φ = 7071769152.

The previous prime is 16903128167. The next prime is 16903128217. The reversal of 16903128172 is 27182130961.

16903128172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×16903128172³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3307243 + ... + 3312349.

Almost surely, 2^16903128172 is an apocalyptic number.

It is an amenable number.

16903128172 is an abundant number, since it is smaller than the sum of its proper divisors (17708679828).

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

16903128172 is a wasteful number, since it uses less digits than its factorization.

16903128172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7910 (or 7908 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 16903128172 in words is "sixteen billion, nine hundred three million, one hundred twenty-eight thousand, one hundred seventy-two".