16424342417 has 4 divisors (see below), whose sum is σ = 18770677056. Its totient is φ = 14078007780.

The previous prime is 16424342411. The next prime is 16424342423. The reversal of 16424342417 is 71424342461.

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, and also an emirpimes, since its reverse is a distinct semiprime: 71424342461 = 19 ⋅3759175919.

It is an interprime number because it is at equal distance from previous prime (16424342411) and next prime (16424342423).

It is a cyclic number.

It is not a de Polignac number, because 16424342417 - 2⁶ = 16424342353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16424342411) 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, 1173167309 + ... + 1173167322.

It is an arithmetic number, because the mean of its divisors is an integer number (4692669264).

Almost surely, 2^16424342417 is an apocalyptic number.

It is an amenable number.

16424342417 is a deficient number, since it is larger than the sum of its proper divisors (2346334639).

16424342417 is an equidigital number, since it uses as much as digits as its factorization.

16424342417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2346334638.

The product of its digits is 129024, while the sum is 38.

Adding to 16424342417 its reverse (71424342461), we get a palindrome (87848684878).

The spelling of 16424342417 in words is "sixteen billion, four hundred twenty-four million, three hundred forty-two thousand, four hundred seventeen".