6706090645 has 16 divisors (see below), whose sum is σ = 8355798000. Its totient is φ = 5160590848.

The previous prime is 6706090639. The next prime is 6706090649. The reversal of 6706090645 is 5460906076.

It can be written as a sum of positive squares in 8 ways, for example, as 2180703204 + 4525387441 = 46698^2 + 67271^2 .

It is a cyclic number.

It is not a de Polignac number, because 6706090645 - 2¹⁷ = 6705959573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6706090649) by changing a digit.

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, 46960 + ... + 124969.

It is an arithmetic number, because the mean of its divisors is an integer number (522237375).

Almost surely, 2^6706090645 is an apocalyptic number.

It is an amenable number.

6706090645 is a deficient number, since it is larger than the sum of its proper divisors (1649707355).

6706090645 is a wasteful number, since it uses less digits than its factorization.

6706090645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172232.

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 6706090645 is about 81890.7238031268. The cubic root of 6706090645 is about 1885.7747070683.

The spelling of 6706090645 in words is "six billion, seven hundred six million, ninety thousand, six hundred forty-five".