66104042 has 8 divisors (see below), whose sum is σ = 99230016. Its totient is φ = 33027372.

The previous prime is 66104039. The next prime is 66104057. The reversal of 66104042 is 24040166.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 66103999 and 66104017.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8768 + ... + 14459.

It is an arithmetic number, because the mean of its divisors is an integer number (12403752).

Almost surely, 2^66104042 is an apocalyptic number.

66104042 is a deficient number, since it is larger than the sum of its proper divisors (33125974).

66104042 is a wasteful number, since it uses less digits than its factorization.

66104042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24652.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 66104042 is about 8130.4392255277. The cubic root of 66104042 is about 404.3362434518.

The spelling of 66104042 in words is "sixty-six million, one hundred four thousand, forty-two".