65308138441 has 32 divisors (see below), whose sum is σ = 81277495040. Its totient is φ = 51402304512.

The previous prime is 65308138411. The next prime is 65308138447. The reversal of 65308138441 is 14483180356.

It is not a de Polignac number, because 65308138441 - 2⁹ = 65308137929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65308138447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2957146 + ... + 2979148.

It is an arithmetic number, because the mean of its divisors is an integer number (2539921720).

Almost surely, 2^65308138441 is an apocalyptic number.

65308138441 is the 147545-th hex number.

It is an amenable number.

65308138441 is a deficient number, since it is larger than the sum of its proper divisors (15969356599).

65308138441 is a wasteful number, since it uses less digits than its factorization.

65308138441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22242 (or 22216 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 65308138441 in words is "sixty-five billion, three hundred eight million, one hundred thirty-eight thousand, four hundred forty-one".