1711616221 has 8 divisors (see below), whose sum is σ = 2023585920. Its totient is φ = 1416509808.

The previous prime is 1711616201. The next prime is 1711616239. The reversal of 1711616221 is 1226161171.

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

It is not a de Polignac number, because 1711616221 - 2¹⁵ = 1711583453 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1711616221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1711616201) 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, 4215601 + ... + 4216006.

It is an arithmetic number, because the mean of its divisors is an integer number (252948240).

Almost surely, 2^1711616221 is an apocalyptic number.

It is an amenable number.

1711616221 is a deficient number, since it is larger than the sum of its proper divisors (311969699).

1711616221 is an equidigital number, since it uses as much as digits as its factorization.

1711616221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8431643.

The product of its digits is 1008, while the sum is 28.

The square root of 1711616221 is about 41371.6838066811. The cubic root of 1711616221 is about 1196.1954088848.

Adding to 1711616221 its reverse (1226161171), we get a palindrome (2937777392).

The spelling of 1711616221 in words is "one billion, seven hundred eleven million, six hundred sixteen thousand, two hundred twenty-one".