115153334421521 has 16 divisors (see below), whose sum is σ = 132234073171200. Its totient is φ = 99174686230800.

The previous prime is 115153334421511. The next prime is 115153334421523. The reversal of 115153334421521 is 125124433351511.

It is a cyclic number.

It is not a de Polignac number, because 115153334421521 - 2¹⁸ = 115153334159377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115153334421523) 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 15 ways as a sum of consecutive naturals, for example, 52293770 + ... + 54451308.

It is an arithmetic number, because the mean of its divisors is an integer number (8264629573200).

Almost surely, 2^{115153334421521} is an apocalyptic number.

115153334421521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

115153334421521 is a deficient number, since it is larger than the sum of its proper divisors (17080738749679).

115153334421521 is a wasteful number, since it uses less digits than its factorization.

115153334421521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2412940.

The product of its digits is 216000, while the sum is 41.

The spelling of 115153334421521 in words is "one hundred fifteen trillion, one hundred fifty-three billion, three hundred thirty-four million, four hundred twenty-one thousand, five hundred twenty-one".