65979624663 has 12 divisors (see below), whose sum is σ = 97879683928. Its totient is φ = 42797594160.

The previous prime is 65979624619. The next prime is 65979624679. The reversal of 65979624663 is 36642697956.

It is a happy number.

It is not a de Polignac number, because 65979624663 - 2¹⁰ = 65979623639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65979624663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65974624663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99068173 + ... + 99068838.

Almost surely, 2^65979624663 is an apocalyptic number.

65979624663 is a deficient number, since it is larger than the sum of its proper divisors (31900059265).

65979624663 is a wasteful number, since it uses less digits than its factorization.

65979624663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198137054 (or 198137051 counting only the distinct ones).

The product of its digits is 88179840, while the sum is 63.

The spelling of 65979624663 in words is "sixty-five billion, nine hundred seventy-nine million, six hundred twenty-four thousand, six hundred sixty-three".