1716606661 has 24 divisors (see below), whose sum is σ = 2293068960. Its totient is φ = 1267207200.

The previous prime is 1716606659. The next prime is 1716606667. The reversal of 1716606661 is 1666066171.

It is not a de Polignac number, because 1716606661 - 2¹ = 1716606659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1716606667) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73570 + ... + 94051.

It is an arithmetic number, because the mean of its divisors is an integer number (95544540).

Almost surely, 2^1716606661 is an apocalyptic number.

1716606661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1716606661 is a deficient number, since it is larger than the sum of its proper divisors (576462299).

1716606661 is a wasteful number, since it uses less digits than its factorization.

1716606661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167665 (or 167658 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 1716606661 is about 41431.9521746200. The cubic root of 1716606661 is about 1197.3568353510.

The spelling of 1716606661 in words is "one billion, seven hundred sixteen million, six hundred six thousand, six hundred sixty-one".