161773115141 has 8 divisors (see below), whose sum is σ = 179372873568. Its totient is φ = 144655542000.

The previous prime is 161773115113. The next prime is 161773115171. The reversal of 161773115141 is 141511377161.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161773115141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161773115095 and 161773115104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161773115171) 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, 120545615 + ... + 120546956.

It is an arithmetic number, because the mean of its divisors is an integer number (22421609196).

Almost surely, 2^161773115141 is an apocalyptic number.

161773115141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

161773115141 is a deficient number, since it is larger than the sum of its proper divisors (17599758427).

161773115141 is a wasteful number, since it uses less digits than its factorization.

161773115141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241092643.

The product of its digits is 17640, while the sum is 38.

The spelling of 161773115141 in words is "one hundred sixty-one billion, seven hundred seventy-three million, one hundred fifteen thousand, one hundred forty-one".