66168141 has 16 divisors (see below), whose sum is σ = 95227776. Its totient is φ = 40625856.

The previous prime is 66168139. The next prime is 66168161. The reversal of 66168141 is 14186166.

It is not a de Polignac number, because 66168141 - 2¹ = 66168139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66168161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17931 + ... + 21303.

It is an arithmetic number, because the mean of its divisors is an integer number (5951736).

Almost surely, 2^66168141 is an apocalyptic number.

It is an amenable number.

66168141 is a deficient number, since it is larger than the sum of its proper divisors (29059635).

66168141 is a wasteful number, since it uses less digits than its factorization.

66168141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3892.

The product of its digits is 6912, while the sum is 33.

The square root of 66168141 is about 8134.3801853614. The cubic root of 66168141 is about 404.4668919238.

The spelling of 66168141 in words is "sixty-six million, one hundred sixty-eight thousand, one hundred forty-one".