1716116881 has 4 divisors (see below), whose sum is σ = 1736793072. Its totient is φ = 1695440692.

The previous prime is 1716116873. The next prime is 1716116891. The reversal of 1716116881 is 1886116171.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1886116171 = 1621 ⋅1163551.

It is a cyclic number.

It is not a de Polignac number, because 1716116881 - 2³ = 1716116873 is a prime.

It is a super-2 number, since 2×1716116881² = 5890114298506336322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1716116861) 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, 10337971 + ... + 10338136.

It is an arithmetic number, because the mean of its divisors is an integer number (434198268).

Almost surely, 2^1716116881 is an apocalyptic number.

It is an amenable number.

1716116881 is a deficient number, since it is larger than the sum of its proper divisors (20676191).

1716116881 is an equidigital number, since it uses as much as digits as its factorization.

1716116881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20676190.

The product of its digits is 16128, while the sum is 40.

The square root of 1716116881 is about 41426.0410973581. The cubic root of 1716116881 is about 1197.2429484159.

The spelling of 1716116881 in words is "one billion, seven hundred sixteen million, one hundred sixteen thousand, eight hundred eighty-one".