16085801 has 4 divisors (see below), whose sum is σ = 16251732. Its totient is φ = 15919872.

The previous prime is 16085777. The next prime is 16085803. The reversal of 16085801 is 10858061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10858061 = 61 ⋅178001.

It can be written as a sum of positive squares in 2 ways, for example, as 3667225 + 12418576 = 1915^2 + 3524^2 .

It is a cyclic number.

It is not a de Polignac number, because 16085801 - 2⁶ = 16085737 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 (16085803) 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, 82820 + ... + 83013.

It is an arithmetic number, because the mean of its divisors is an integer number (4062933).

Almost surely, 2^16085801 is an apocalyptic number.

It is an amenable number.

16085801 is a deficient number, since it is larger than the sum of its proper divisors (165931).

16085801 is an equidigital number, since it uses as much as digits as its factorization.

16085801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165930.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 16085801 is about 4010.7107848859. The cubic root of 16085801 is about 252.4338342464.

The spelling of 16085801 in words is "sixteen million, eighty-five thousand, eight hundred one".