706556656985 has 16 divisors (see below), whose sum is σ = 856178128080. Its totient is φ = 559711676160.

The previous prime is 706556656951. The next prime is 706556657003. The reversal of 706556656985 is 589656655607.

It can be written as a sum of positive squares in 8 ways, for example, as 5157106969 + 701399550016 = 71813^2 + 837496^2 .

It is not a de Polignac number, because 706556656985 - 2²⁴ = 706539879769 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 477215 + ... + 1280955.

It is an arithmetic number, because the mean of its divisors is an integer number (53511133005).

Almost surely, 2^706556656985 is an apocalyptic number.

It is an amenable number.

706556656985 is a deficient number, since it is larger than the sum of its proper divisors (149621471095).

706556656985 is a wasteful number, since it uses less digits than its factorization.

706556656985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805468.

The product of its (nonzero) digits is 408240000, while the sum is 68.

The spelling of 706556656985 in words is "seven hundred six billion, five hundred fifty-six million, six hundred fifty-six thousand, nine hundred eighty-five".