161129488382 has 4 divisors (see below), whose sum is σ = 241694232576. Its totient is φ = 80564744190.

The previous prime is 161129488381. The next prime is 161129488397. The reversal of 161129488382 is 283884921161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 283884921161 = 5209 ⋅54498929.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161129488381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40282372094 + ... + 40282372097.

It is an arithmetic number, because the mean of its divisors is an integer number (60423558144).

Almost surely, 2^161129488382 is an apocalyptic number.

161129488382 is a deficient number, since it is larger than the sum of its proper divisors (80564744194).

161129488382 is an equidigital number, since it uses as much as digits as its factorization.

161129488382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80564744193.

The product of its digits is 1327104, while the sum is 53.

The spelling of 161129488382 in words is "one hundred sixty-one billion, one hundred twenty-nine million, four hundred eighty-eight thousand, three hundred eighty-two".