1315223228560 has 80 divisors (see below), whose sum is σ = 3157454195712. Its totient is φ = 508970534400.

The previous prime is 1315223228551. The next prime is 1315223228587. The reversal of 1315223228560 is 658223225131.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8646765 + ... + 8797555.

Almost surely, 2^{1315223228560} is an apocalyptic number.

1315223228560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1315223228560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1578727097856).

1315223228560 is an abundant number, since it is smaller than the sum of its proper divisors (1842230967152).

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

1315223228560 is a wasteful number, since it uses less digits than its factorization.

1315223228560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154352 (or 154346 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 1315223228560 in words is "one trillion, three hundred fifteen billion, two hundred twenty-three million, two hundred twenty-eight thousand, five hundred sixty".