16000073 has 4 divisors (see below), whose sum is σ = 16008900. Its totient is φ = 15991248.

The previous prime is 16000057. The next prime is 16000079. The reversal of 16000073 is 37000061.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 15272464 + 727609 = 3908^2 + 853^2 .

It is a cyclic number.

It is not a de Polignac number, because 16000073 - 2⁴ = 16000057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16000079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590 + ... + 5687.

It is an arithmetic number, because the mean of its divisors is an integer number (4002225).

Almost surely, 2^16000073 is an apocalyptic number.

It is an amenable number.

16000073 is a deficient number, since it is larger than the sum of its proper divisors (8827).

16000073 is an equidigital number, since it uses as much as digits as its factorization.

16000073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8826.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 16000073 is about 4000.0091249896. The cubic root of 16000073 is about 251.9845932044.

The spelling of 16000073 in words is "sixteen million, seventy-three", and thus it is an aban number and an uban number.