13516671401 has 4 divisors (see below), whose sum is σ = 13522408452. Its totient is φ = 13510934352.

The previous prime is 13516671373. The next prime is 13516671407. The reversal of 13516671401 is 10417661531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4212139801 + 9304531600 = 64901^2 + 96460^2 .

It is a cyclic number.

It is not a de Polignac number, because 13516671401 - 2¹⁴ = 13516655017 is a prime.

It is a super-2 number, since 2×13516671401² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13516671407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2864990 + ... + 2869703.

It is an arithmetic number, because the mean of its divisors is an integer number (3380602113).

Almost surely, 2^13516671401 is an apocalyptic number.

It is an amenable number.

13516671401 is a deficient number, since it is larger than the sum of its proper divisors (5737051).

13516671401 is an equidigital number, since it uses as much as digits as its factorization.

13516671401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5737050.

The product of its (nonzero) digits is 15120, while the sum is 35.

The spelling of 13516671401 in words is "thirteen billion, five hundred sixteen million, six hundred seventy-one thousand, four hundred one".