16921425180 has 96 divisors (see below), whose sum is σ = 53469642240. Its totient is φ = 3960705280.

The previous prime is 16921425161. The next prime is 16921425187. The reversal of 16921425180 is 8152412961.

16921425180 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16921425187) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 422904 + ... + 461183.

It is an arithmetic number, because the mean of its divisors is an integer number (556975440).

Almost surely, 2^16921425180 is an apocalyptic number.

16921425180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16921425180 is an abundant number, since it is smaller than the sum of its proper divisors (36548217060).

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

16921425180 is a wasteful number, since it uses less digits than its factorization.

16921425180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884139 (or 884137 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The spelling of 16921425180 in words is "sixteen billion, nine hundred twenty-one million, four hundred twenty-five thousand, one hundred eighty".