16601801 has 8 divisors (see below), whose sum is σ = 17527200. Its totient is φ = 15681600.

The previous prime is 16601779. The next prime is 16601803. The reversal of 16601801 is 10810661.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16601801 - 2⁶ = 16601737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16601803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6530 + ... + 8708.

It is an arithmetic number, because the mean of its divisors is an integer number (2190900).

Almost surely, 2^16601801 is an apocalyptic number.

It is an amenable number.

16601801 is a deficient number, since it is larger than the sum of its proper divisors (925399).

16601801 is a wasteful number, since it uses less digits than its factorization.

16601801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2599.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 16601801 is about 4074.5307705305. The cubic root of 16601801 is about 255.1046654793.

The spelling of 16601801 in words is "sixteen million, six hundred one thousand, eight hundred one".