12315220144460 has 48 divisors (see below), whose sum is σ = 27388961490240. Its totient is φ = 4635351859200.

The previous prime is 12315220144457. The next prime is 12315220144489. The reversal of 12315220144460 is 6444102251321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12315220144460.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2139920 + ... + 5404599.

It is an arithmetic number, because the mean of its divisors is an integer number (570603364380).

Almost surely, 2^{12315220144460} is an apocalyptic number.

12315220144460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12315220144460 is an abundant number, since it is smaller than the sum of its proper divisors (15073741345780).

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

12315220144460 is a wasteful number, since it uses less digits than its factorization.

12315220144460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7549346 (or 7549344 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

Adding to 12315220144460 its reverse (6444102251321), we get a palindrome (18759322395781).

The spelling of 12315220144460 in words is "twelve trillion, three hundred fifteen billion, two hundred twenty million, one hundred forty-four thousand, four hundred sixty".