5571876661 has 16 divisors (see below), whose sum is σ = 6407001216. Its totient is φ = 4805228736.

The previous prime is 5571876637. The next prime is 5571876679. The reversal of 5571876661 is 1666781755.

It is a cyclic number.

It is not a de Polignac number, because 5571876661 - 2¹³ = 5571868469 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5571876599 and 5571876608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5571826661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203830 + ... + 229543.

It is an arithmetic number, because the mean of its divisors is an integer number (400437576).

Almost surely, 2^5571876661 is an apocalyptic number.

It is an amenable number.

5571876661 is a deficient number, since it is larger than the sum of its proper divisors (835124555).

5571876661 is a wasteful number, since it uses less digits than its factorization.

5571876661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433452.

The product of its digits is 2116800, while the sum is 52.

The square root of 5571876661 is about 74645.0042601647. The cubic root of 5571876661 is about 1772.8302959106.

The spelling of 5571876661 in words is "five billion, five hundred seventy-one million, eight hundred seventy-six thousand, six hundred sixty-one".