65838537173 has 8 divisors (see below), whose sum is σ = 69768852000. Its totient is φ = 61954735248.

The previous prime is 65838537119. The next prime is 65838537251. The reversal of 65838537173 is 37173583856.

65838537173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65838537173 - 2⁸ = 65838536917 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 (65838537103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11625311 + ... + 11630972.

It is an arithmetic number, because the mean of its divisors is an integer number (8721106500).

Almost surely, 2^65838537173 is an apocalyptic number.

It is an amenable number.

65838537173 is a deficient number, since it is larger than the sum of its proper divisors (3930314827).

65838537173 is a wasteful number, since it uses less digits than its factorization.

65838537173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23256451.

The product of its digits is 12700800, while the sum is 56.

The spelling of 65838537173 in words is "sixty-five billion, eight hundred thirty-eight million, five hundred thirty-seven thousand, one hundred seventy-three".