168612069376 has 63 divisors (see below), whose sum is σ = 338067032653. Its totient is φ = 84095795200.

The previous prime is 168612069359. The next prime is 168612069383. The reversal of 168612069376 is 673960216861.

The square root of 168612069376 is 410624.

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., 166934347776 + 1677721600 = 408576^2 + 40960^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 420478776 + ... + 420479176.

Almost surely, 2^168612069376 is an apocalyptic number.

168612069376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

168612069376 is the 410624-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168612069376

168612069376 is an abundant number, since it is smaller than the sum of its proper divisors (169454963277).

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

168612069376 is an frugal number, since it uses more digits than its factorization.

168612069376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 168612069376 in words is "one hundred sixty-eight billion, six hundred twelve million, sixty-nine thousand, three hundred seventy-six".