66104111 has 8 divisors (see below), whose sum is σ = 66786720. Its totient is φ = 65425248.

The previous prime is 66104107. The next prime is 66104117. The reversal of 66104111 is 11140166.

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 66104111 - 2² = 66104107 is a prime.

It is a super-2 number, since 2×66104111² = 8739506982200642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66104117) 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, 45545 + ... + 46973.

It is an arithmetic number, because the mean of its divisors is an integer number (8348340).

Almost surely, 2^66104111 is an apocalyptic number.

66104111 is a deficient number, since it is larger than the sum of its proper divisors (682609).

66104111 is a wasteful number, since it uses less digits than its factorization.

66104111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 66104111 is about 8130.4434688398. The cubic root of 66104111 is about 404.3363841350.

Adding to 66104111 its reverse (11140166), we get a palindrome (77244277).

The spelling of 66104111 in words is "sixty-six million, one hundred four thousand, one hundred eleven".