16454841971 has 4 divisors (see below), whose sum is σ = 16458907944. Its totient is φ = 16450776000.

The previous prime is 16454841961. The next prime is 16454841973. The reversal of 16454841971 is 17914845461.

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 16454841971 - 2¹⁴ = 16454825587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16454841973) 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, 2026910 + ... + 2035011.

It is an arithmetic number, because the mean of its divisors is an integer number (4114726986).

Almost surely, 2^16454841971 is an apocalyptic number.

16454841971 is a deficient number, since it is larger than the sum of its proper divisors (4065973).

16454841971 is an equidigital number, since it uses as much as digits as its factorization.

16454841971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4065972.

The product of its digits is 967680, while the sum is 50.

The spelling of 16454841971 in words is "sixteen billion, four hundred fifty-four million, eight hundred forty-one thousand, nine hundred seventy-one".