16071899 has 4 divisors (see below), whose sum is σ = 16292136. Its totient is φ = 15851664.

The previous prime is 16071889. The next prime is 16071901. The reversal of 16071899 is 99817061.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16071899 - 2⁴ = 16071883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16071859) 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, 110009 + ... + 110154.

It is an arithmetic number, because the mean of its divisors is an integer number (4073034).

Almost surely, 2^16071899 is an apocalyptic number.

16071899 is a deficient number, since it is larger than the sum of its proper divisors (220237).

16071899 is an equidigital number, since it uses as much as digits as its factorization.

16071899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220236.

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 16071899 is about 4008.9773010083. The cubic root of 16071899 is about 252.3610921095.

The spelling of 16071899 in words is "sixteen million, seventy-one thousand, eight hundred ninety-nine".