16071216001091 has 4 divisors (see below), whose sum is σ = 17016581648232. Its totient is φ = 15125850353952.

The previous prime is 16071216001073. The next prime is 16071216001129. The reversal of 16071216001091 is 19010061217061.

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 16071216001091 - 2²² = 16071211806787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16071216001021) 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, 472682823545 + ... + 472682823578.

It is an arithmetic number, because the mean of its divisors is an integer number (4254145412058).

Almost surely, 2^{16071216001091} is an apocalyptic number.

16071216001091 is a deficient number, since it is larger than the sum of its proper divisors (945365647141).

16071216001091 is an equidigital number, since it uses as much as digits as its factorization.

16071216001091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945365647140.

The product of its (nonzero) digits is 4536, while the sum is 35.

The spelling of 16071216001091 in words is "sixteen trillion, seventy-one billion, two hundred sixteen million, one thousand, ninety-one".