168144282916 has 27 divisors (see below), whose sum is σ = 295559989137. Its totient is φ = 83700222480.

The previous prime is 168144282899. The next prime is 168144282947. The reversal of 168144282916 is 619282441861.

The square root of 168144282916 is 410054.

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., 797836516 + 167346446400 = 28246^2 + 409080^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 345265225 + ... + 345265711.

Almost surely, 2^168144282916 is an apocalyptic number.

168144282916 is the 410054-th square number.

It is an amenable number.

168144282916 is a deficient number, since it is larger than the sum of its proper divisors (127415706221).

168144282916 is an frugal number, since it uses more digits than its factorization.

168144282916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820 (or 910 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 52.

The spelling of 168144282916 in words is "one hundred sixty-eight billion, one hundred forty-four million, two hundred eighty-two thousand, nine hundred sixteen".