15520113440315 has 16 divisors (see below), whose sum is σ = 20789733355776. Its totient is φ = 11024858594400.

The previous prime is 15520113440267. The next prime is 15520113440347. The reversal of 15520113440315 is 51304431102551.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-15520113440315 is a prime.

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, 3281205551 + ... + 3281210280.

It is an arithmetic number, because the mean of its divisors is an integer number (1299358334736).

Almost surely, 2^{15520113440315} is an apocalyptic number.

15520113440315 is a deficient number, since it is larger than the sum of its proper divisors (5269619915461).

15520113440315 is a wasteful number, since it uses less digits than its factorization.

15520113440315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6562415890.

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 15520113440315 its reverse (51304431102551), we get a palindrome (66824544542866).

The spelling of 15520113440315 in words is "fifteen trillion, five hundred twenty billion, one hundred thirteen million, four hundred forty thousand, three hundred fifteen".