168738565284 has 63 divisors (see below), whose sum is σ = 442794410107. Its totient is φ = 56238794424.

The previous prime is 168738565277. The next prime is 168738565291. The reversal of 168738565284 is 482565837861.

The square root of 168738565284 is 410778.

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

168738565284 is a `hidden beast` number, since 1 + 68 + 7 + 3 + 8 + 565 + 2 + 8 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (168738565277) and next prime (168738565291).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 22178209 + ... + 22185815.

Almost surely, 2^168738565284 is an apocalyptic number.

168738565284 is the 410778-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168738565284

168738565284 is an abundant number, since it is smaller than the sum of its proper divisors (274055844823).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168738565284 is an frugal number, since it uses more digits than its factorization.

168738565284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15236 (or 7612 counting only the distinct ones).

The product of its digits is 77414400, while the sum is 63.

The spelling of 168738565284 in words is "one hundred sixty-eight billion, seven hundred thirty-eight million, five hundred sixty-five thousand, two hundred eighty-four".