12415620344064 has 72 divisors (see below), whose sum is σ = 37764178562880. Its totient is φ = 3547320096768.

The previous prime is 12415620344059. The next prime is 12415620344119. The reversal of 12415620344064 is 46044302651421.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1154721219 + ... + 1154731970.

It is an arithmetic number, because the mean of its divisors is an integer number (524502480040).

Almost surely, 2^{12415620344064} is an apocalyptic number.

12415620344064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12415620344064 is an abundant number, since it is smaller than the sum of its proper divisors (25348558218816).

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

12415620344064 is an equidigital number, since it uses as much as digits as its factorization.

12415620344064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2309453215 (or 2309453201 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

Adding to 12415620344064 its reverse (46044302651421), we get a palindrome (58459922995485).

The spelling of 12415620344064 in words is "twelve trillion, four hundred fifteen billion, six hundred twenty million, three hundred forty-four thousand, sixty-four".