5711606665 has 4 divisors (see below), whose sum is σ = 6853928004. Its totient is φ = 4569285328.

The previous prime is 5711606653. The next prime is 5711606683. The reversal of 5711606665 is 5666061175.

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 3031163136 + 2680443529 = 55056^2 + 51773^2 .

It is a cyclic number.

It is not a de Polignac number, because 5711606665 - 2⁵ = 5711606633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 571160662 + ... + 571160671.

It is an arithmetic number, because the mean of its divisors is an integer number (1713482001).

Almost surely, 2^5711606665 is an apocalyptic number.

It is an amenable number.

5711606665 is a deficient number, since it is larger than the sum of its proper divisors (1142321339).

5711606665 is a wasteful number, since it uses less digits than its factorization.

5711606665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142321338.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 5711606665 is about 75575.1722789965. The cubic root of 5711606665 is about 1787.5276318287.

The spelling of 5711606665 in words is "five billion, seven hundred eleven million, six hundred six thousand, six hundred sixty-five".