115140121164 has 48 divisors (see below), whose sum is σ = 304862745600. Its totient is φ = 37563442128.

The previous prime is 115140121147. The next prime is 115140121169. The reversal of 115140121164 is 461121041511.

It is a happy number.

115140121164 is a `hidden beast` number, since 11 + 514 + 0 + 121 + 16 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (115140121169) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11336544 + ... + 11346695.

It is an arithmetic number, because the mean of its divisors is an integer number (6351307200).

Almost surely, 2^115140121164 is an apocalyptic number.

It is an amenable number.

115140121164 is an abundant number, since it is smaller than the sum of its proper divisors (189722624436).

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

115140121164 is a wasteful number, since it uses less digits than its factorization.

115140121164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22683299 (or 22683291 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

Adding to 115140121164 its reverse (461121041511), we get a palindrome (576261162675).

The spelling of 115140121164 in words is "one hundred fifteen billion, one hundred forty million, one hundred twenty-one thousand, one hundred sixty-four".