16205801 has 2 divisors, whose sum is σ = 16205802. Its totient is φ = 16205800.

The previous prime is 16205789. The next prime is 16205831. The reversal of 16205801 is 10850261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16192576 + 13225 = 4024^2 + 115^2 .

It is a cyclic number.

It is not a de Polignac number, because 16205801 - 2¹⁴ = 16189417 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16205831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8102900 + 8102901.

It is an arithmetic number, because the mean of its divisors is an integer number (8102901).

Almost surely, 2^16205801 is an apocalyptic number.

It is an amenable number.

16205801 is a deficient number, since it is larger than the sum of its proper divisors (1).

16205801 is an equidigital number, since it uses as much as digits as its factorization.

16205801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 16205801 is about 4025.6429300175. The cubic root of 16205801 is about 253.0599981646.

The spelling of 16205801 in words is "sixteen million, two hundred five thousand, eight hundred one".