66104742 has 16 divisors (see below), whose sum is σ = 144228672. Its totient is φ = 20031720.

The previous prime is 66104723. The next prime is 66104749. The reversal of 66104742 is 24740166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66104749) 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, 500728 + ... + 500859.

It is an arithmetic number, because the mean of its divisors is an integer number (9014292).

Almost surely, 2^66104742 is an apocalyptic number.

66104742 is an abundant number, since it is smaller than the sum of its proper divisors (78123930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66104742 is a wasteful number, since it uses less digits than its factorization.

66104742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001603.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 66104742 is about 8130.4822735186. The cubic root of 66104742 is about 404.3376706684.

The spelling of 66104742 in words is "sixty-six million, one hundred four thousand, seven hundred forty-two".