13155351520415 has 8 divisors (see below), whose sum is σ = 17000761964928. Its totient is φ = 9714721122720.

The previous prime is 13155351520391. The next prime is 13155351520417. The reversal of 13155351520415 is 51402515355131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13155351520415 - 2³⁶ = 13086632043679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13155351520417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101195011631 + ... + 101195011760.

It is an arithmetic number, because the mean of its divisors is an integer number (2125095245616).

Almost surely, 2^{13155351520415} is an apocalyptic number.

13155351520415 is a deficient number, since it is larger than the sum of its proper divisors (3845410444513).

13155351520415 is a wasteful number, since it uses less digits than its factorization.

13155351520415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202390023409.

The product of its (nonzero) digits is 225000, while the sum is 41.

Adding to 13155351520415 its reverse (51402515355131), we get a palindrome (64557866875546).

The spelling of 13155351520415 in words is "thirteen trillion, one hundred fifty-five billion, three hundred fifty-one million, five hundred twenty thousand, four hundred fifteen".