16513112712641 has 12 divisors (see below), whose sum is σ = 16948351882260. Its totient is φ = 16084712054880.

The previous prime is 16513112712589. The next prime is 16513112712643. The reversal of 16513112712641 is 14621721131561.

It can be written as a sum of positive squares in 2 ways, for example, as 4861676616241 + 11651436096400 = 2204921^2 + 3413420^2 .

It is not a de Polignac number, because 16513112712641 - 2¹⁰ = 16513112711617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16513112712643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12111206 + ... + 13405503.

It is an arithmetic number, because the mean of its divisors is an integer number (1412362656855).

Almost surely, 2^{16513112712641} is an apocalyptic number.

It is an amenable number.

16513112712641 is a deficient number, since it is larger than the sum of its proper divisors (435239169619).

16513112712641 is an equidigital number, since it uses as much as digits as its factorization.

16513112712641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25516976 (or 25516873 counting only the distinct ones).

The product of its digits is 60480, while the sum is 41.

The spelling of 16513112712641 in words is "sixteen trillion, five hundred thirteen billion, one hundred twelve million, seven hundred twelve thousand, six hundred forty-one".