65986647488 has 28 divisors (see below), whose sum is σ = 131415004632. Its totient is φ = 32874205440.

The previous prime is 65986647469. The next prime is 65986647499. The reversal of 65986647488 is 88474668956.

It is a happy number.

65986647488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1843358 + ... + 1878813.

Almost surely, 2^65986647488 is an apocalyptic number.

It is an amenable number.

65986647488 is a deficient number, since it is larger than the sum of its proper divisors (65428357144).

65986647488 is a wasteful number, since it uses less digits than its factorization.

65986647488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3722460 (or 3722450 counting only the distinct ones).

The product of its digits is 557383680, while the sum is 71.

The spelling of 65986647488 in words is "sixty-five billion, nine hundred eighty-six million, six hundred forty-seven thousand, four hundred eighty-eight".