65989615996 has 24 divisors (see below), whose sum is σ = 121721788160. Its totient is φ = 31216590000.

The previous prime is 65989615987. The next prime is 65989616027. The reversal of 65989615996 is 69951698956.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521010 + ... + 635161.

Almost surely, 2^65989615996 is an apocalyptic number.

It is an amenable number.

65989615996 is a deficient number, since it is larger than the sum of its proper divisors (55732172164).

65989615996 is a wasteful number, since it uses less digits than its factorization.

65989615996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156945 (or 1156943 counting only the distinct ones).

The product of its digits is 283435200, while the sum is 73.

The spelling of 65989615996 in words is "sixty-five billion, nine hundred eighty-nine million, six hundred fifteen thousand, nine hundred ninety-six".