161848325132517 has 4 divisors (see below), whose sum is σ = 215797766843360. Its totient is φ = 107898883421676.

The previous prime is 161848325132489. The next prime is 161848325132551. The reversal of 161848325132517 is 715231523848161.

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 not a de Polignac number, because 161848325132517 - 2¹⁴ = 161848325116133 is a prime.

It is a super-2 number, since 2×161848325132517² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161848325137517) 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, 26974720855417 + ... + 26974720855422.

It is an arithmetic number, because the mean of its divisors is an integer number (53949441710840).

Almost surely, 2^{161848325132517} is an apocalyptic number.

It is an amenable number.

161848325132517 is a deficient number, since it is larger than the sum of its proper divisors (53949441710843).

161848325132517 is an equidigital number, since it uses as much as digits as its factorization.

161848325132517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53949441710842.

The product of its digits is 9676800, while the sum is 57.

The spelling of 161848325132517 in words is "one hundred sixty-one trillion, eight hundred forty-eight billion, three hundred twenty-five million, one hundred thirty-two thousand, five hundred seventeen".