16506131313 has 8 divisors (see below), whose sum is σ = 25152200128. Its totient is φ = 9432075024.

The previous prime is 16506131297. The next prime is 16506131339. The reversal of 16506131313 is 31313160561.

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

It is not a de Polignac number, because 16506131313 - 2⁴ = 16506131297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16506131353) 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, 393003106 + ... + 393003147.

It is an arithmetic number, because the mean of its divisors is an integer number (3144025016).

Almost surely, 2^16506131313 is an apocalyptic number.

It is an amenable number.

16506131313 is a deficient number, since it is larger than the sum of its proper divisors (8646068815).

16506131313 is an equidigital number, since it uses as much as digits as its factorization.

16506131313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786006263.

The product of its (nonzero) digits is 4860, while the sum is 30.

Adding to 16506131313 its reverse (31313160561), we get a palindrome (47819291874).

The spelling of 16506131313 in words is "sixteen billion, five hundred six million, one hundred thirty-one thousand, three hundred thirteen".