16434277401 has 4 divisors (see below), whose sum is σ = 21912369872. Its totient is φ = 10956184932.

The previous prime is 16434277399. The next prime is 16434277403. The reversal of 16434277401 is 10477243461.

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 an interprime number because it is at equal distance from previous prime (16434277399) and next prime (16434277403).

It is not a de Polignac number, because 16434277401 - 2¹ = 16434277399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16434277401.

It is not an unprimeable number, because it can be changed into a prime (16434277403) 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, 2739046231 + ... + 2739046236.

It is an arithmetic number, because the mean of its divisors is an integer number (5478092468).

Almost surely, 2^16434277401 is an apocalyptic number.

It is an amenable number.

16434277401 is a deficient number, since it is larger than the sum of its proper divisors (5478092471).

16434277401 is an equidigital number, since it uses as much as digits as its factorization.

16434277401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5478092470.

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 16434277401 in words is "sixteen billion, four hundred thirty-four million, two hundred seventy-seven thousand, four hundred one".