66204873250 has 128 divisors (see below), whose sum is σ = 131193354240. Its totient is φ = 24967641600.

The previous prime is 66204873199. The next prime is 66204873269. The reversal of 66204873250 is 5237840266.

It is a junction number, because it is equal to n+sod(n) for n = 66204873197 and 66204873206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 180394567 + ... + 180394933.

It is an arithmetic number, because the mean of its divisors is an integer number (1024948080).

Almost surely, 2^66204873250 is an apocalyptic number.

66204873250 is a deficient number, since it is larger than the sum of its proper divisors (64988480990).

66204873250 is a wasteful number, since it uses less digits than its factorization.

66204873250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773 (or 763 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 66204873250 in words is "sixty-six billion, two hundred four million, eight hundred seventy-three thousand, two hundred fifty".