660133411 has 4 divisors (see below), whose sum is σ = 754438192. Its totient is φ = 565828632.

The previous prime is 660133393. The next prime is 660133423. The reversal of 660133411 is 114331066.

It is a happy number.

660133411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 660133411 - 2¹¹ = 660131363 is a prime.

It is a super-2 number, since 2×660133411² = 871552240636989842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660143411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47152380 + ... + 47152393.

It is an arithmetic number, because the mean of its divisors is an integer number (188609548).

Almost surely, 2^660133411 is an apocalyptic number.

660133411 is a deficient number, since it is larger than the sum of its proper divisors (94304781).

660133411 is an equidigital number, since it uses as much as digits as its factorization.

660133411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94304780.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 660133411 is about 25693.0615341963. The cubic root of 660133411 is about 870.7174295373.

Adding to 660133411 its reverse (114331066), we get a palindrome (774464477).

The spelling of 660133411 in words is "six hundred sixty million, one hundred thirty-three thousand, four hundred eleven".