16146022489 has 9 divisors (see below), whose sum is σ = 16239445023. Its totient is φ = 16053136512.

The previous prime is 16146022463. The next prime is 16146022511. The reversal of 16146022489 is 98422064161.

The square root of 16146022489 is 127067.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 9867044889 + 6278977600 = 99333^2 + 79240^2 .

It is a de Polignac number, because none of the positive numbers 2^k-16146022489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16146022429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 35959737 + ... + 35960185.

Almost surely, 2^16146022489 is an apocalyptic number.

16146022489 is the 127067-th square number.

16146022489 is the 63534-th centered octagonal number.

It is an amenable number.

16146022489 is a deficient number, since it is larger than the sum of its proper divisors (93422534).

16146022489 is an frugal number, since it uses more digits than its factorization.

16146022489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 16146022489 in words is "sixteen billion, one hundred forty-six million, twenty-two thousand, four hundred eighty-nine".