66104633 has 4 divisors (see below), whose sum is σ = 75548160. Its totient is φ = 56661108.

The previous prime is 66104611. The next prime is 66104657. The reversal of 66104633 is 33640166.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 66104633 - 2⁶ = 66104569 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66104596 and 66104605.

It is not an unprimeable number, because it can be changed into a prime (66104683) 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, 4721753 + ... + 4721766.

It is an arithmetic number, because the mean of its divisors is an integer number (18887040).

Almost surely, 2^66104633 is an apocalyptic number.

It is an amenable number.

66104633 is a deficient number, since it is larger than the sum of its proper divisors (9443527).

66104633 is an equidigital number, since it uses as much as digits as its factorization.

66104633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9443526.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 66104633 is about 8130.4755703464. The cubic root of 66104633 is about 404.3374484311.

Adding to 66104633 its reverse (33640166), we get a palindrome (99744799).

The spelling of 66104633 in words is "sixty-six million, one hundred four thousand, six hundred thirty-three".