3116755661 has 4 divisors (see below), whose sum is σ = 3117028992. Its totient is φ = 3116482332.

The previous prime is 3116755651. The next prime is 3116755727. The reversal of 3116755661 is 1665576113.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 3116755661 - 2²² = 3112561357 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 (3116755651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118781 + ... + 142626.

It is an arithmetic number, because the mean of its divisors is an integer number (779257248).

Almost surely, 2^3116755661 is an apocalyptic number.

It is an amenable number.

3116755661 is a deficient number, since it is larger than the sum of its proper divisors (273331).

3116755661 is a wasteful number, since it uses less digits than its factorization.

3116755661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273330.

The product of its digits is 113400, while the sum is 41.

The square root of 3116755661 is about 55827.9111287535. The cubic root of 3116755661 is about 1460.7220518346.

The spelling of 3116755661 in words is "three billion, one hundred sixteen million, seven hundred fifty-five thousand, six hundred sixty-one".