580166666 has 8 divisors (see below), whose sum is σ = 870368004. Its totient is φ = 290044000.

The previous prime is 580166579. The next prime is 580166677. The reversal of 580166666 is 666661085.

It can be written as a sum of positive squares in 2 ways, for example, as 579124225 + 1042441 = 24065^2 + 1021^2 .

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

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, 4916 + ... + 34416.

Almost surely, 2^580166666 is an apocalyptic number.

580166666 is a deficient number, since it is larger than the sum of its proper divisors (290201338).

580166666 is a wasteful number, since it uses less digits than its factorization.

580166666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39336.

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 580166666 is about 24086.6491235290. The cubic root of 580166666 is about 834.0349643265.

The spelling of 580166666 in words is "five hundred eighty million, one hundred sixty-six thousand, six hundred sixty-six".