572066666 has 8 divisors (see below), whose sum is σ = 858202884. Its totient is φ = 285999040.

The previous prime is 572066647. The next prime is 572066669. The reversal of 572066666 is 666660275.

It can be written as a sum of positive squares in 2 ways, for example, as 484924441 + 87142225 = 22021^2 + 9335^2 .

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

572066666 is a modest number, since divided by 66666 gives 5720 as remainder.

It is not an unprimeable number, because it can be changed into a prime (572066669) 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, 18656 + ... + 38628.

Almost surely, 2^572066666 is an apocalyptic number.

572066666 is a deficient number, since it is larger than the sum of its proper divisors (286136218).

572066666 is a wasteful number, since it uses less digits than its factorization.

572066666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34296.

The product of its (nonzero) digits is 544320, while the sum is 44.

The square root of 572066666 is about 23917.9151683419. The cubic root of 572066666 is about 830.1352980194.

The spelling of 572066666 in words is "five hundred seventy-two million, sixty-six thousand, six hundred sixty-six".