666086626 has 8 divisors (see below), whose sum is σ = 1002010320. Its totient is φ = 332083188.

The previous prime is 666086609. The next prime is 666086627. The reversal of 666086626 is 626680666.

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

It is not an unprimeable number, because it can be changed into a prime (666086627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479196 + ... + 480583.

It is an arithmetic number, because the mean of its divisors is an integer number (125251290).

Almost surely, 2^666086626 is an apocalyptic number.

666086626 is a deficient number, since it is larger than the sum of its proper divisors (335923694).

666086626 is a wasteful number, since it uses less digits than its factorization.

666086626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960128.

The product of its (nonzero) digits is 746496, while the sum is 46.

The square root of 666086626 is about 25808.6540912152. The cubic root of 666086626 is about 873.3270351248.

The spelling of 666086626 in words is "six hundred sixty-six million, eighty-six thousand, six hundred twenty-six".