66241331 has 8 divisors (see below), whose sum is σ = 71468544. Its totient is φ = 61032960.

The previous prime is 66241321. The next prime is 66241339. The reversal of 66241331 is 13314266.

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 66241331 - 2¹⁴ = 66224947 is a prime.

It is a super-2 number, since 2×66241331² = 8775827865303122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66241331.

It is not an unprimeable number, because it can be changed into a prime (66241339) 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, 3086 + ... + 11916.

It is an arithmetic number, because the mean of its divisors is an integer number (8933568).

Almost surely, 2^66241331 is an apocalyptic number.

66241331 is a deficient number, since it is larger than the sum of its proper divisors (5227213).

66241331 is a wasteful number, since it uses less digits than its factorization.

66241331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9421.

The product of its digits is 2592, while the sum is 26.

The square root of 66241331 is about 8138.8777481911. The cubic root of 66241331 is about 404.6159668071.

Adding to 66241331 its reverse (13314266), we get a palindrome (79555597).

The spelling of 66241331 in words is "sixty-six million, two hundred forty-one thousand, three hundred thirty-one".