166568036703376 has 135 divisors (see below), whose sum is σ = 412656593491443. Its totient is φ = 64895088941760.

The previous prime is 166568036703329. The next prime is 166568036703407. The reversal of 166568036703376 is 673307630865661.

The square root of 166568036703376 is 12906124.

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

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3975065241 + ... + 3975107143.

Almost surely, 2^{166568036703376} is an apocalyptic number.

166568036703376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

166568036703376 is the 12906124-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166568036703376

166568036703376 is an abundant number, since it is smaller than the sum of its proper divisors (246088556788067).

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

166568036703376 is an frugal number, since it uses more digits than its factorization.

166568036703376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83850 (or 41923 counting only the distinct ones).

The product of its (nonzero) digits is 411505920, while the sum is 67.

The spelling of 166568036703376 in words is "one hundred sixty-six trillion, five hundred sixty-eight billion, thirty-six million, seven hundred three thousand, three hundred seventy-six".