65328431013 has 16 divisors (see below), whose sum is σ = 96788683200. Its totient is φ = 43549667280.

The previous prime is 65328430969. The next prime is 65328431017. The reversal of 65328431013 is 31013482356.

65328431013 is a `hidden beast` number, since 6 + 5 + 328 + 4 + 310 + 13 = 666.

It is not a de Polignac number, because 65328431013 - 2⁸ = 65328430757 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65328431017) 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, 453543 + ... + 579963.

It is an arithmetic number, because the mean of its divisors is an integer number (6049292700).

Almost surely, 2^65328431013 is an apocalyptic number.

It is an amenable number.

65328431013 is a deficient number, since it is larger than the sum of its proper divisors (31460252187).

65328431013 is a wasteful number, since it uses less digits than its factorization.

65328431013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145569 (or 145563 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 65328431013 in words is "sixty-five billion, three hundred twenty-eight million, four hundred thirty-one thousand, thirteen".