42516331165 has 32 divisors (see below), whose sum is σ = 65802274560. Its totient is φ = 25589760000.

The previous prime is 42516331139. The next prime is 42516331183. The reversal of 42516331165 is 56113361524.

It is not a de Polignac number, because 42516331165 - 2⁵ = 42516331133 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1892836 + ... + 1915165.

It is an arithmetic number, because the mean of its divisors is an integer number (2056321080).

Almost surely, 2^42516331165 is an apocalyptic number.

It is an amenable number.

42516331165 is a deficient number, since it is larger than the sum of its proper divisors (23285943395).

42516331165 is a wasteful number, since it uses less digits than its factorization.

42516331165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3808053.

The product of its digits is 64800, while the sum is 37.

Adding to 42516331165 its reverse (56113361524), we get a palindrome (98629692689).

The spelling of 42516331165 in words is "forty-two billion, five hundred sixteen million, three hundred thirty-one thousand, one hundred sixty-five".