161586143143 has 8 divisors (see below), whose sum is σ = 163639112000. Its totient is φ = 159533363808.

The previous prime is 161586143137. The next prime is 161586143149. The reversal of 161586143143 is 341341685161.

It is an interprime number because it is at equal distance from previous prime (161586143137) and next prime (161586143149).

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 161586143143 - 2¹³ = 161586134951 is a prime.

It is a super-2 number, since 2×161586143143² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161586143143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161586143149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2603905 + ... + 2665237.

It is an arithmetic number, because the mean of its divisors is an integer number (20454889000).

Almost surely, 2^161586143143 is an apocalyptic number.

161586143143 is a deficient number, since it is larger than the sum of its proper divisors (2052968857).

161586143143 is an equidigital number, since it uses as much as digits as its factorization.

161586143143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94761.

The product of its digits is 207360, while the sum is 43.

The spelling of 161586143143 in words is "one hundred sixty-one billion, five hundred eighty-six million, one hundred forty-three thousand, one hundred forty-three".