15164450121105 has 12 divisors (see below), whose sum is σ = 26285046876660. Its totient is φ = 8087706731232.

The previous prime is 15164450121103. The next prime is 15164450121143. The reversal of 15164450121105 is 50112105446151.

15164450121105 is a `hidden beast` number, since 1 + 5 + 1 + 6 + 44 + 501 + 2 + 1 + 105 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5310683378064 + 9853766743041 = 2304492^2 + 3139071^2 .

It is not a de Polignac number, because 15164450121105 - 2¹ = 15164450121103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15164450121105.

It is not an unprimeable number, because it can be changed into a prime (15164450121103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168493890190 + ... + 168493890279.

It is an arithmetic number, because the mean of its divisors is an integer number (2190420573055).

Almost surely, 2^{15164450121105} is an apocalyptic number.

15164450121105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15164450121105 is a deficient number, since it is larger than the sum of its proper divisors (11120596755555).

15164450121105 is a wasteful number, since it uses less digits than its factorization.

15164450121105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336987780480 (or 336987780477 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 36.

Adding to 15164450121105 its reverse (50112105446151), we get a palindrome (65276555567256).

The spelling of 15164450121105 in words is "fifteen trillion, one hundred sixty-four billion, four hundred fifty million, one hundred twenty-one thousand, one hundred five".