66041131 has 8 divisors (see below), whose sum is σ = 74864720. Its totient is φ = 57752352.

The previous prime is 66041099. The next prime is 66041159. The reversal of 66041131 is 13114066.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66041131 - 2⁵ = 66041099 is a prime.

It is a super-2 number, since 2×66041131² = 8722861967518322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66041531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133440 + ... + 133933.

It is an arithmetic number, because the mean of its divisors is an integer number (9358090).

Almost surely, 2^66041131 is an apocalyptic number.

66041131 is a deficient number, since it is larger than the sum of its proper divisors (8823589).

66041131 is a wasteful number, since it uses less digits than its factorization.

66041131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267405.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 66041131 is about 8126.5694484204. The cubic root of 66041131 is about 404.2079342470.

Adding to 66041131 its reverse (13114066), we get a palindrome (79155197).

The spelling of 66041131 in words is "sixty-six million, forty-one thousand, one hundred thirty-one".