66146852 has 6 divisors (see below), whose sum is σ = 115756998. Its totient is φ = 33073424.

The previous prime is 66146851. The next prime is 66146869. The reversal of 66146852 is 25864166.

It can be written as a sum of positive squares in only one way, i.e., 46022656 + 20124196 = 6784^2 + 4486^2 .

It is not an unprimeable number, because it can be changed into a prime (66146851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8268353 + ... + 8268360.

It is an arithmetic number, because the mean of its divisors is an integer number (19292833).

Almost surely, 2^66146852 is an apocalyptic number.

It is an amenable number.

66146852 is a deficient number, since it is larger than the sum of its proper divisors (49610146).

66146852 is a wasteful number, since it uses less digits than its factorization.

66146852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16536717 (or 16536715 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 66146852 is about 8133.0714985176. The cubic root of 66146852 is about 404.4235094179.

The spelling of 66146852 in words is "sixty-six million, one hundred forty-six thousand, eight hundred fifty-two".