120161610112 has 64 divisors (see below), whose sum is σ = 241946060400. Its totient is φ = 59438848000.

The previous prime is 120161610109. The next prime is 120161610131. The reversal of 120161610112 is 211016161021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20927562 + ... + 20933302.

Almost surely, 2^120161610112 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 120161610112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120973030200).

120161610112 is an abundant number, since it is smaller than the sum of its proper divisors (121784450288).

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

120161610112 is a wasteful number, since it uses less digits than its factorization.

120161610112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7475 (or 7463 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 120161610112 its reverse (211016161021), we get a palindrome (331177771133).

The spelling of 120161610112 in words is "one hundred twenty billion, one hundred sixty-one million, six hundred ten thousand, one hundred twelve".