16680801 has 4 divisors (see below), whose sum is σ = 22241072. Its totient is φ = 11120532.

The previous prime is 16680793. The next prime is 16680823. The reversal of 16680801 is 10808661.

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.

It is not a de Polignac number, because 16680801 - 2³ = 16680793 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (16680871) 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, 2780131 + ... + 2780136.

It is an arithmetic number, because the mean of its divisors is an integer number (5560268).

Almost surely, 2^16680801 is an apocalyptic number.

It is an amenable number.

16680801 is a deficient number, since it is larger than the sum of its proper divisors (5560271).

16680801 is an equidigital number, since it uses as much as digits as its factorization.

16680801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5560270.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 16680801 is about 4084.2136330021. The cubic root of 16680801 is about 255.5086655481.

The spelling of 16680801 in words is "sixteen million, six hundred eighty thousand, eight hundred one".