4071557666 has 8 divisors (see below), whose sum is σ = 6662548944. Its totient is φ = 1850708020.

The previous prime is 4071557657. The next prime is 4071557669. The reversal of 4071557666 is 6667551704.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4071557666.

It is not an unprimeable number, because it can be changed into a prime (4071557669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92535380 + ... + 92535423.

It is an arithmetic number, because the mean of its divisors is an integer number (832818618).

Almost surely, 2^4071557666 is an apocalyptic number.

4071557666 is a deficient number, since it is larger than the sum of its proper divisors (2590991278).

4071557666 is a wasteful number, since it uses less digits than its factorization.

4071557666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185070816.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The square root of 4071557666 is about 63808.7585367401. The cubic root of 4071557666 is about 1596.8110527845.

The spelling of 4071557666 in words is "four billion, seventy-one million, five hundred fifty-seven thousand, six hundred sixty-six".