66852512 has 12 divisors (see below), whose sum is σ = 131615946. Its totient is φ = 33426240.

The previous prime is 66852503. The next prime is 66852521. The reversal of 66852512 is 21525866.

66852512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (66852503) and next prime (66852521).

It can be written as a sum of positive squares in only one way, i.e., 57093136 + 9759376 = 7556^2 + 3124^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 4.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1044539 + ... + 1044602.

Almost surely, 2^66852512 is an apocalyptic number.

It is an amenable number.

66852512 is a deficient number, since it is larger than the sum of its proper divisors (64763434).

66852512 is a wasteful number, since it uses less digits than its factorization.

66852512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089151 (or 2089143 counting only the distinct ones).

The product of its digits is 28800, while the sum is 35.

The square root of 66852512 is about 8176.3385448500. The cubic root of 66852512 is about 405.8565664151.

The spelling of 66852512 in words is "sixty-six million, eight hundred fifty-two thousand, five hundred twelve".