66333441 has 8 divisors (see below), whose sum is σ = 89081440. Its totient is φ = 43903872.

The previous prime is 66333437. The next prime is 66333457. The reversal of 66333441 is 14433366.

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

It is not a de Polignac number, because 66333441 - 2² = 66333437 is a prime.

It is a super-4 number, since 4×66333441⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66333399 and 66333408.

It is not an unprimeable number, because it can be changed into a prime (66333431) 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, 79120 + ... + 79953.

It is an arithmetic number, because the mean of its divisors is an integer number (11135180).

Almost surely, 2^66333441 is an apocalyptic number.

It is an amenable number.

66333441 is a deficient number, since it is larger than the sum of its proper divisors (22747999).

66333441 is a wasteful number, since it uses less digits than its factorization.

66333441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159215.

The product of its digits is 15552, while the sum is 30.

The square root of 66333441 is about 8144.5344249994. The cubic root of 66333441 is about 404.8034223576.

The spelling of 66333441 in words is "sixty-six million, three hundred thirty-three thousand, four hundred forty-one".