66290441 has 8 divisors (see below), whose sum is σ = 76511424. Its totient is φ = 56257200.

The previous prime is 66290437. The next prime is 66290443. The reversal of 66290441 is 14409266.

It is a happy number.

66290441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 66290441 - 2² = 66290437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66290398 and 66290407.

It is not an unprimeable number, because it can be changed into a prime (66290443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46175 + ... + 47588.

It is an arithmetic number, because the mean of its divisors is an integer number (9563928).

Almost surely, 2^66290441 is an apocalyptic number.

It is an amenable number.

66290441 is a deficient number, since it is larger than the sum of its proper divisors (10220983).

66290441 is a wasteful number, since it uses less digits than its factorization.

66290441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93871.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 66290441 is about 8141.8941899290. The cubic root of 66290441 is about 404.7159335060.

The spelling of 66290441 in words is "sixty-six million, two hundred ninety thousand, four hundred forty-one".