66370125376 has 21 divisors (see below), whose sum is σ = 131707307451. Its totient is φ = 33184032192.

The previous prime is 66370125343. The next prime is 66370125413. The reversal of 66370125376 is 67352107366.

The square root of 66370125376 is 257624.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2044891 + ... + 2077093.

Almost surely, 2^66370125376 is an apocalyptic number.

66370125376 is the 257624-th square number.

It is an amenable number.

66370125376 is a deficient number, since it is larger than the sum of its proper divisors (65337182075).

66370125376 is an frugal number, since it uses more digits than its factorization.

66370125376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64418 (or 32205 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 46.

The spelling of 66370125376 in words is "sixty-six billion, three hundred seventy million, one hundred twenty-five thousand, three hundred seventy-six".