5771117661 has 32 divisors (see below), whose sum is σ = 7969311360. Its totient is φ = 3712087296.

The previous prime is 5771117659. The next prime is 5771117663. The reversal of 5771117661 is 1667111775.

It is an interprime number because it is at equal distance from previous prime (5771117659) and next prime (5771117663).

It is not a de Polignac number, because 5771117661 - 2¹ = 5771117659 is a prime.

It is a super-2 number, since 2×5771117661² = 66611598114212221842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5771117663) 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 31 ways as a sum of consecutive naturals, for example, 10360795 + ... + 10361351.

It is an arithmetic number, because the mean of its divisors is an integer number (249040980).

Almost surely, 2^5771117661 is an apocalyptic number.

It is an amenable number.

5771117661 is a deficient number, since it is larger than the sum of its proper divisors (2198193699).

5771117661 is a wasteful number, since it uses less digits than its factorization.

5771117661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213.

The product of its digits is 61740, while the sum is 42.

The square root of 5771117661 is about 75967.8725580755. The cubic root of 5771117661 is about 1793.7144615394.

The spelling of 5771117661 in words is "five billion, seven hundred seventy-one million, one hundred seventeen thousand, six hundred sixty-one".