166663141 has 16 divisors (see below), whose sum is σ = 174873600. Its totient is φ = 158700528.

The previous prime is 166663139. The next prime is 166663153. The reversal of 166663141 is 141366661.

It is a cyclic number.

It is not a de Polignac number, because 166663141 - 2¹ = 166663139 is a prime.

It is a super-3 number, since 3×166663141³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

Its product of digits (15552) is a multiple of the sum of its prime divisors (648).

It is a junction number, because it is equal to n+sod(n) for n = 166663097 and 166663106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166663181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 453940 + ... + 454306.

It is an arithmetic number, because the mean of its divisors is an integer number (10929600).

Almost surely, 2^166663141 is an apocalyptic number.

It is an amenable number.

166663141 is a deficient number, since it is larger than the sum of its proper divisors (8210459).

166663141 is a wasteful number, since it uses less digits than its factorization.

166663141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648.

The product of its digits is 15552, while the sum is 34.

The square root of 166663141 is about 12909.8079381531. The cubic root of 166663141 is about 550.3173276235.

The spelling of 166663141 in words is "one hundred sixty-six million, six hundred sixty-three thousand, one hundred forty-one".