166323141 has 6 divisors (see below), whose sum is σ = 240244550. Its totient is φ = 110882088.

The previous prime is 166323133. The next prime is 166323161. The reversal of 166323141 is 141323661.

166323141 is a `hidden beast` number, since 16 + 632 + 3 + 14 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 151807041 + 14516100 = 12321^2 + 3810^2 .

It is not a de Polignac number, because 166323141 - 2³ = 166323133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166323161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9240166 + ... + 9240183.

Almost surely, 2^166323141 is an apocalyptic number.

It is an amenable number.

166323141 is a deficient number, since it is larger than the sum of its proper divisors (73921409).

166323141 is a wasteful number, since it uses less digits than its factorization.

166323141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18480355 (or 18480352 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 166323141 is about 12896.6329326689. The cubic root of 166323141 is about 549.9428491580.

It can be divided in two parts, 166323 and 141, that added together give a square (166464 = 408²).

The spelling of 166323141 in words is "one hundred sixty-six million, three hundred twenty-three thousand, one hundred forty-one".