12015103445064 has 24 divisors (see below), whose sum is σ = 32540905163910. Its totient is φ = 4005034481664.

The previous prime is 12015103445063. The next prime is 12015103445143. The reversal of 12015103445064 is 46054430151021.

12015103445064 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 5 + 103 + 44 + 506 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11827477592100 + 187625852964 = 3439110^2 + 433158^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12015103445063) 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 5 ways as a sum of consecutive naturals, for example, 83438218297 + ... + 83438218440.

Almost surely, 2^{12015103445064} is an apocalyptic number.

It is an amenable number.

12015103445064 is an abundant number, since it is smaller than the sum of its proper divisors (20525801718846).

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

12015103445064 is a wasteful number, since it uses less digits than its factorization.

12015103445064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166876436749 (or 166876436742 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 12015103445064 its reverse (46054430151021), we get a palindrome (58069533596085).

The spelling of 12015103445064 in words is "twelve trillion, fifteen billion, one hundred three million, four hundred forty-five thousand, sixty-four".