16146622417 has 4 divisors (see below), whose sum is σ = 16146990180. Its totient is φ = 16146254656.

The previous prime is 16146622369. The next prime is 16146622433. The reversal of 16146622417 is 71422664161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5230760976 + 10915861441 = 72324^2 + 104479^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16146622417 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 16146622417.

It is not an unprimeable number, because it can be changed into a prime (16146622477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107428 + ... + 209365.

It is an arithmetic number, because the mean of its divisors is an integer number (4036747545).

Almost surely, 2^16146622417 is an apocalyptic number.

It is an amenable number.

16146622417 is a deficient number, since it is larger than the sum of its proper divisors (367763).

16146622417 is an equidigital number, since it uses as much as digits as its factorization.

16146622417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367762.

The product of its digits is 96768, while the sum is 40.

The spelling of 16146622417 in words is "sixteen billion, one hundred forty-six million, six hundred twenty-two thousand, four hundred seventeen".