166363132650 has 192 divisors, whose sum is σ = 510222343680. Its totient is φ = 35268652800.

The previous prime is 166363132633. The next prime is 166363132651. The reversal of 166363132650 is 56231363661.

It is not an unprimeable number, because it can be changed into a prime (166363132651) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 203449 + ... + 611651.

It is an arithmetic number, because the mean of its divisors is an integer number (2657408040).

Almost surely, 2^166363132650 is an apocalyptic number.

166363132650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 166363132650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255111171840).

166363132650 is an abundant number, since it is smaller than the sum of its proper divisors (343859211030).

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

166363132650 is a wasteful number, since it uses less digits than its factorization.

166363132650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408261 (or 408256 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 42.

The spelling of 166363132650 in words is "one hundred sixty-six billion, three hundred sixty-three million, one hundred thirty-two thousand, six hundred fifty".