13416706991 has 4 divisors (see below), whose sum is σ = 13417057584. Its totient is φ = 13416356400.

The previous prime is 13416706957. The next prime is 13416707009. The reversal of 13416706991 is 19960761431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19960761431 = 13 ⋅1535443187.

It is a cyclic number.

It is not a de Polignac number, because 13416706991 - 2¹⁴ = 13416690607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13416706921) 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, 109715 + ... + 197156.

It is an arithmetic number, because the mean of its divisors is an integer number (3354264396).

Almost surely, 2^13416706991 is an apocalyptic number.

13416706991 is a deficient number, since it is larger than the sum of its proper divisors (350593).

13416706991 is an equidigital number, since it uses as much as digits as its factorization.

13416706991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350592.

The product of its (nonzero) digits is 244944, while the sum is 47.

The spelling of 13416706991 in words is "thirteen billion, four hundred sixteen million, seven hundred six thousand, nine hundred ninety-one".