16221600873 has 48 divisors (see below), whose sum is σ = 25238304000. Its totient is φ = 10008520704.

The previous prime is 16221600869. The next prime is 16221600887. The reversal of 16221600873 is 37800612261.

It is not a de Polignac number, because 16221600873 - 2² = 16221600869 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16221600803) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2162313 + ... + 2169801.

It is an arithmetic number, because the mean of its divisors is an integer number (525798000).

Almost surely, 2^16221600873 is an apocalyptic number.

It is an amenable number.

16221600873 is a deficient number, since it is larger than the sum of its proper divisors (9016703127).

16221600873 is a wasteful number, since it uses less digits than its factorization.

16221600873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7806 (or 7803 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 16221600873 in words is "sixteen billion, two hundred twenty-one million, six hundred thousand, eight hundred seventy-three".