3656700645 has 32 divisors (see below), whose sum is σ = 6304980864. Its totient is φ = 1799020800.

The previous prime is 3656700631. The next prime is 3656700653. The reversal of 3656700645 is 5460076563.

3656700645 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 3656700645 - 2⁸ = 3656700389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3656700597 and 3656700606.

It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 334110 + ... + 344880.

It is an arithmetic number, because the mean of its divisors is an integer number (197030652).

Almost surely, 2^3656700645 is an apocalyptic number.

It is an amenable number.

3656700645 is a deficient number, since it is larger than the sum of its proper divisors (2648280219).

3656700645 is a wasteful number, since it uses less digits than its factorization.

3656700645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12533.

The product of its (nonzero) digits is 453600, while the sum is 42.

The square root of 3656700645 is about 60470.6593729554. The cubic root of 3656700645 is about 1540.6233273903.

The spelling of 3656700645 in words is "three billion, six hundred fifty-six million, seven hundred thousand, six hundred forty-five".