166631120224660 has 192 divisors, whose sum is σ = 431993021644800. Its totient is φ = 52575023443968.

The previous prime is 166631120224627. The next prime is 166631120224663. The reversal of 166631120224660 is 66422021136661.

It is a self number, because there is not a number n which added to its sum of digits gives 166631120224660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166631120224663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1609459776 + ... + 1609563304.

It is an arithmetic number, because the mean of its divisors is an integer number (2249963654400).

Almost surely, 2^{166631120224660} is an apocalyptic number.

166631120224660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166631120224660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215996510822400).

166631120224660 is an abundant number, since it is smaller than the sum of its proper divisors (265361901420140).

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

166631120224660 is a wasteful number, since it uses less digits than its factorization.

166631120224660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106250 (or 106248 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 46.

The spelling of 166631120224660 in words is "one hundred sixty-six trillion, six hundred thirty-one billion, one hundred twenty million, two hundred twenty-four thousand, six hundred sixty".