65328732073 has 4 divisors (see below), whose sum is σ = 71267707728. Its totient is φ = 59389756420.

The previous prime is 65328732067. The next prime is 65328732089. The reversal of 65328732073 is 37023782356.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65328732073 - 2¹⁷ = 65328601001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65328732773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2969487811 + ... + 2969487832.

It is an arithmetic number, because the mean of its divisors is an integer number (17816926932).

Almost surely, 2^65328732073 is an apocalyptic number.

It is an amenable number.

65328732073 is a deficient number, since it is larger than the sum of its proper divisors (5938975655).

65328732073 is a wasteful number, since it uses less digits than its factorization.

65328732073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5938975654.

The product of its (nonzero) digits is 1270080, while the sum is 46.

The spelling of 65328732073 in words is "sixty-five billion, three hundred twenty-eight million, seven hundred thirty-two thousand, seventy-three".