161060825128 has 128 divisors (see below), whose sum is σ = 386423654400. Its totient is φ = 61336166400.

The previous prime is 161060825119. The next prime is 161060825173. The reversal of 161060825128 is 821528060161.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1143438 + ... + 1276546.

It is an arithmetic number, because the mean of its divisors is an integer number (3018934800).

Almost surely, 2^161060825128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161060825128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193211827200).

161060825128 is an abundant number, since it is smaller than the sum of its proper divisors (225362829272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161060825128 is a wasteful number, since it uses less digits than its factorization.

161060825128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133211 (or 133207 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 40.

Adding to 161060825128 its reverse (821528060161), we get a palindrome (982588885289).

The spelling of 161060825128 in words is "one hundred sixty-one billion, sixty million, eight hundred twenty-five thousand, one hundred twenty-eight".