65032620173 has 4 divisors (see below), whose sum is σ = 65244453120. Its totient is φ = 64820787228.

The previous prime is 65032620137. The next prime is 65032620181. The reversal of 65032620173 is 37102623056.

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 65032620173 - 2⁶ = 65032620109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65032620673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105916013 + ... + 105916626.

It is an arithmetic number, because the mean of its divisors is an integer number (16311113280).

Almost surely, 2^65032620173 is an apocalyptic number.

It is an amenable number.

65032620173 is a deficient number, since it is larger than the sum of its proper divisors (211832947).

65032620173 is a wasteful number, since it uses less digits than its factorization.

65032620173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211832946.

The product of its (nonzero) digits is 45360, while the sum is 35.

The spelling of 65032620173 in words is "sixty-five billion, thirty-two million, six hundred twenty thousand, one hundred seventy-three".