115215223530144 has 48 divisors (see below), whose sum is σ = 307566062828640. Its totient is φ = 37754141041920.

The previous prime is 115215223530137. The next prime is 115215223530241. The reversal of 115215223530144 is 441035322512511.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10170829747 + ... + 10170841074.

It is an arithmetic number, because the mean of its divisors is an integer number (6407626308930).

Almost surely, 2^{115215223530144} is an apocalyptic number.

It is an amenable number.

115215223530144 is an abundant number, since it is smaller than the sum of its proper divisors (192350839298496).

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

115215223530144 is a wasteful number, since it uses less digits than its factorization.

115215223530144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20341670893 (or 20341670885 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 115215223530144 in words is "one hundred fifteen trillion, two hundred fifteen billion, two hundred twenty-three million, five hundred thirty thousand, one hundred forty-four".