65847380631636 has 12 divisors (see below), whose sum is σ = 153643888140512. Its totient is φ = 21949126877208.

The previous prime is 65847380631611. The next prime is 65847380631649. The reversal of 65847380631636 is 63613608374856.

It is a tau number, because it is divible by the number of its divisors (12).

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, 2743640859640 + ... + 2743640859663.

Almost surely, 2^{65847380631636} is an apocalyptic number.

It is an amenable number.

65847380631636 is an abundant number, since it is smaller than the sum of its proper divisors (87796507508876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65847380631636 is a wasteful number, since it uses less digits than its factorization.

65847380631636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5487281719310 (or 5487281719308 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 66.

The spelling of 65847380631636 in words is "sixty-five trillion, eight hundred forty-seven billion, three hundred eighty million, six hundred thirty-one thousand, six hundred thirty-six".