120015125815 has 16 divisors (see below), whose sum is σ = 155187900000. Its totient is φ = 88574308992.

The previous prime is 120015125809. The next prime is 120015125843. The reversal of 120015125815 is 518521510021.

It is not a de Polignac number, because 120015125815 - 2¹⁹ = 120014601527 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 432940 + ... + 653809.

It is an arithmetic number, because the mean of its divisors is an integer number (9699243750).

Almost surely, 2^120015125815 is an apocalyptic number.

120015125815 is a deficient number, since it is larger than the sum of its proper divisors (35172774185).

120015125815 is a wasteful number, since it uses less digits than its factorization.

120015125815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088466.

The product of its (nonzero) digits is 4000, while the sum is 31.

Adding to 120015125815 its reverse (518521510021), we get a palindrome (638536635836).

The spelling of 120015125815 in words is "one hundred twenty billion, fifteen million, one hundred twenty-five thousand, eight hundred fifteen".