15315125345320 has 64 divisors (see below), whose sum is σ = 34739602128000. Its totient is φ = 6076253968128.

The previous prime is 15315125345279. The next prime is 15315125345323. The reversal of 15315125345320 is 2354352151351.

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

It is not an unprimeable number, because it can be changed into a prime (15315125345323) 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 15 ways as a sum of consecutive naturals, for example, 4614646 + ... + 7205914.

It is an arithmetic number, because the mean of its divisors is an integer number (542806283250).

Almost surely, 2^{15315125345320} is an apocalyptic number.

15315125345320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15315125345320 is an abundant number, since it is smaller than the sum of its proper divisors (19424476782680).

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

15315125345320 is a wasteful number, since it uses less digits than its factorization.

15315125345320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2592482 (or 2592478 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 40.

Adding to 15315125345320 its reverse (2354352151351), we get a palindrome (17669477496671).

The spelling of 15315125345320 in words is "fifteen trillion, three hundred fifteen billion, one hundred twenty-five million, three hundred forty-five thousand, three hundred twenty".