16016001 has 4 divisors (see below), whose sum is σ = 21354672. Its totient is φ = 10677332.

The previous prime is 16015999. The next prime is 16016009. The reversal of 16016001 is 10061061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10061061 = 3 ⋅3353687.

It is a cyclic number.

It is not a de Polignac number, because 16016001 - 2¹ = 16015999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16016009) 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, 2669331 + ... + 2669336.

It is an arithmetic number, because the mean of its divisors is an integer number (5338668).

Almost surely, 2^16016001 is an apocalyptic number.

It is an amenable number.

16016001 is a deficient number, since it is larger than the sum of its proper divisors (5338671).

16016001 is an equidigital number, since it uses as much as digits as its factorization.

16016001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5338670.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 16016001 is about 4001.9996251874. Note that the first 3 decimals coincide. The cubic root of 16016001 is about 252.0681819791.

Adding to 16016001 its reverse (10061061), we get a palindrome (26077062).

It can be divided in two parts, 160 and 16001, that added together give a palindrome (16161).

The spelling of 16016001 in words is "sixteen million, sixteen thousand, one".