120115155156 has 24 divisors (see below), whose sum is σ = 280319286240. Its totient is φ = 40031157792.

The previous prime is 120115155031. The next prime is 120115155157. The reversal of 120115155156 is 651551511021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120115155157) 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, 833946 + ... + 967313.

It is an arithmetic number, because the mean of its divisors is an integer number (11679970260).

Almost surely, 2^120115155156 is an apocalyptic number.

It is an amenable number.

120115155156 is an abundant number, since it is smaller than the sum of its proper divisors (160204131084).

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

120115155156 is a wasteful number, since it uses less digits than its factorization.

120115155156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806823 (or 1806821 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 33.

Adding to 120115155156 its reverse (651551511021), we get a palindrome (771666666177).

The spelling of 120115155156 in words is "one hundred twenty billion, one hundred fifteen million, one hundred fifty-five thousand, one hundred fifty-six".