161632324617 has 16 divisors (see below), whose sum is σ = 228798599040. Its totient is φ = 101144454912.

The previous prime is 161632324597. The next prime is 161632324619. The reversal of 161632324617 is 716423236161.

It is a de Polignac number, because none of the positive numbers 2^k-161632324617 is a prime.

It is a super-2 number, since 2×161632324617² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161632324619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4229317 + ... + 4267362.

It is an arithmetic number, because the mean of its divisors is an integer number (14299912440).

Almost surely, 2^161632324617 is an apocalyptic number.

161632324617 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

161632324617 is a deficient number, since it is larger than the sum of its proper divisors (67166274423).

161632324617 is a wasteful number, since it uses less digits than its factorization.

161632324617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8497072.

The product of its digits is 217728, while the sum is 42.

The spelling of 161632324617 in words is "one hundred sixty-one billion, six hundred thirty-two million, three hundred twenty-four thousand, six hundred seventeen".