13515655005503 has 8 divisors (see below), whose sum is σ = 15447062722560. Its totient is φ = 11584397253240.

The previous prime is 13515655005499. The next prime is 13515655005547. The reversal of 13515655005503 is 30550055651531.

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

It is not a de Polignac number, because 13515655005503 - 2² = 13515655005499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13515655085503) 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, 37298003 + ... + 37658628.

It is an arithmetic number, because the mean of its divisors is an integer number (1930882840320).

Almost surely, 2^{13515655005503} is an apocalyptic number.

13515655005503 is a deficient number, since it is larger than the sum of its proper divisors (1931407717057).

13515655005503 is an equidigital number, since it uses as much as digits as its factorization.

13515655005503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74982397.

The product of its (nonzero) digits is 843750, while the sum is 44.

The spelling of 13515655005503 in words is "thirteen trillion, five hundred fifteen billion, six hundred fifty-five million, five thousand, five hundred three".