166772241 has 24 divisors (see below), whose sum is σ = 252485376. Its totient is φ = 105874560.

The previous prime is 166772237. The next prime is 166772251. The reversal of 166772241 is 142277661.

166772241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 166772241 - 2² = 166772237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166772196 and 166772205.

It is not an unprimeable number, because it can be changed into a prime (166772251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48216 + ... + 51558.

It is an arithmetic number, because the mean of its divisors is an integer number (10520224).

Almost surely, 2^166772241 is an apocalyptic number.

It is an amenable number.

166772241 is a deficient number, since it is larger than the sum of its proper divisors (85713135).

166772241 is a wasteful number, since it uses less digits than its factorization.

166772241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3613 (or 3610 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 166772241 is about 12914.0327163903. The cubic root of 166772241 is about 550.4373832117.

The spelling of 166772241 in words is "one hundred sixty-six million, seven hundred seventy-two thousand, two hundred forty-one".