13156516497 has 8 divisors (see below), whose sum is σ = 17542759456. Its totient is φ = 8770642272.

The previous prime is 13156516489. The next prime is 13156516531. The reversal of 13156516497 is 79461565131.

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 13156516497 - 2³ = 13156516489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13156516697) 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, 6018 + ... + 162324.

It is an arithmetic number, because the mean of its divisors is an integer number (2192844932).

Almost surely, 2^13156516497 is an apocalyptic number.

It is an amenable number.

13156516497 is a deficient number, since it is larger than the sum of its proper divisors (4386242959).

13156516497 is a wasteful number, since it uses less digits than its factorization.

13156516497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184367.

The product of its digits is 680400, while the sum is 48.

The spelling of 13156516497 in words is "thirteen billion, one hundred fifty-six million, five hundred sixteen thousand, four hundred ninety-seven".