706554666 has 96 divisors (see below), whose sum is σ = 1671321600. Its totient is φ = 215147520.

The previous prime is 706554661. The next prime is 706554679. The reversal of 706554666 is 666455607.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (706554661) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 760090 + ... + 761018.

It is an arithmetic number, because the mean of its divisors is an integer number (17409600).

Almost surely, 2^706554666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 706554666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (835660800).

706554666 is an abundant number, since it is smaller than the sum of its proper divisors (964766934).

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

706554666 is a wasteful number, since it uses less digits than its factorization.

706554666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044 (or 1041 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The square root of 706554666 is about 26581.0960270640. The cubic root of 706554666 is about 890.6667839159. Note that the first 3 decimals are identical.

The spelling of 706554666 in words is "seven hundred six million, five hundred fifty-four thousand, six hundred sixty-six".