663610566772070 has 32 divisors (see below), whose sum is σ = 1198770936215040. Its totient is φ = 264494945182720.

The previous prime is 663610566772063. The next prime is 663610566772079. The reversal of 663610566772070 is 70277665016366.

It is a junction number, because it is equal to n+sod(n) for n = 663610566771994 and 663610566772012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663610566772079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160400699 + ... + 164485881.

It is an arithmetic number, because the mean of its divisors is an integer number (37461591756720).

Almost surely, 2^{663610566772070} is an apocalyptic number.

663610566772070 is a deficient number, since it is larger than the sum of its proper divisors (535160369442970).

663610566772070 is a wasteful number, since it uses less digits than its factorization.

663610566772070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4143280.

The product of its (nonzero) digits is 80015040, while the sum is 62.

The spelling of 663610566772070 in words is "six hundred sixty-three trillion, six hundred ten billion, five hundred sixty-six million, seven hundred seventy-two thousand, seventy".