16265448091 has 4 divisors (see below), whose sum is σ = 16572343392. Its totient is φ = 15958552792.

The previous prime is 16265448083. The next prime is 16265448097. The reversal of 16265448091 is 19084456261.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19084456261 = 13 ⋅1468035097.

It is a cyclic number.

It is not a de Polignac number, because 16265448091 - 2³ = 16265448083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16265448097) 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, 153447571 + ... + 153447676.

It is an arithmetic number, because the mean of its divisors is an integer number (4143085848).

Almost surely, 2^16265448091 is an apocalyptic number.

16265448091 is a deficient number, since it is larger than the sum of its proper divisors (306895301).

16265448091 is an equidigital number, since it uses as much as digits as its factorization.

16265448091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306895300.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 16265448091 in words is "sixteen billion, two hundred sixty-five million, four hundred forty-eight thousand, ninety-one".