16001002173 has 16 divisors (see below), whose sum is σ = 22980900096. Its totient is φ = 9844584000.

The previous prime is 16001002139. The next prime is 16001002183. The reversal of 16001002173 is 37120010061.

It is not a de Polignac number, because 16001002173 - 2⁸ = 16001001917 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16001002183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142111 + ... + 228467.

It is an arithmetic number, because the mean of its divisors is an integer number (1436306256).

Almost surely, 2^16001002173 is an apocalyptic number.

16001002173 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16001002173 is a deficient number, since it is larger than the sum of its proper divisors (6979897923).

16001002173 is a wasteful number, since it uses less digits than its factorization.

16001002173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91124.

The product of its (nonzero) digits is 252, while the sum is 21.

The spelling of 16001002173 in words is "sixteen billion, one million, two thousand, one hundred seventy-three".