65864332389936 has 80 divisors (see below), whose sum is σ = 170399998702080. Its totient is φ = 21922480281600.

The previous prime is 65864332389923. The next prime is 65864332389937. The reversal of 65864332389936 is 63998323346856.

It is a super-2 number, since 2×65864332389936² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65864332389937) 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, 96042661 + ... + 96726011.

It is an arithmetic number, because the mean of its divisors is an integer number (2129999983776).

Almost surely, 2^{65864332389936} is an apocalyptic number.

It is an amenable number.

65864332389936 is an abundant number, since it is smaller than the sum of its proper divisors (104535666312144).

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

65864332389936 is a wasteful number, since it uses less digits than its factorization.

65864332389936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686314 (or 686308 counting only the distinct ones).

The product of its digits is 3627970560, while the sum is 75.

The spelling of 65864332389936 in words is "sixty-five trillion, eight hundred sixty-four billion, three hundred thirty-two million, three hundred eighty-nine thousand, nine hundred thirty-six".