5571408666 has 8 divisors (see below), whose sum is σ = 11142817344. Its totient is φ = 1857136220.

The previous prime is 5571408659. The next prime is 5571408683. The reversal of 5571408666 is 6668041755.

It is a sphenic number, since it is the product of 3 distinct primes.

5571408666 is an admirable 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, 464284050 + ... + 464284061.

It is an arithmetic number, because the mean of its divisors is an integer number (1392852168).

Almost surely, 2^5571408666 is an apocalyptic number.

5571408666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5571408666 is a wasteful number, since it uses less digits than its factorization.

5571408666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928568116.

The product of its (nonzero) digits is 1209600, while the sum is 48.

The square root of 5571408666 is about 74641.8693897735. The cubic root of 5571408666 is about 1772.7806597949.

The spelling of 5571408666 in words is "five billion, five hundred seventy-one million, four hundred eight thousand, six hundred sixty-six".