6636670745 has 16 divisors (see below), whose sum is σ = 8023287168. Its totient is φ = 5269958400.

The previous prime is 6636670727. The next prime is 6636670829. The reversal of 6636670745 is 5470766366.

6636670745 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6636670745 - 2¹² = 6636666649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6636670693 and 6636670702.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 373820 + ... + 391170.

It is an arithmetic number, because the mean of its divisors is an integer number (501455448).

Almost surely, 2^6636670745 is an apocalyptic number.

It is an amenable number.

6636670745 is a deficient number, since it is larger than the sum of its proper divisors (1386616423).

6636670745 is a wasteful number, since it uses less digits than its factorization.

6636670745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17920.

The product of its (nonzero) digits is 3810240, while the sum is 50.

The square root of 6636670745 is about 81465.7642510030. The cubic root of 6636670745 is about 1879.2450893362.

The spelling of 6636670745 in words is "six billion, six hundred thirty-six million, six hundred seventy thousand, seven hundred forty-five".