56656562201 has 16 divisors (see below), whose sum is σ = 60554926080. Its totient is φ = 52822344960.

The previous prime is 56656562141. The next prime is 56656562219. The reversal of 56656562201 is 10226565665.

It is a cyclic number.

It is not a de Polignac number, because 56656562201 - 2³⁴ = 39476693017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56656568201) by changing a digit.

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, 1402871 + ... + 1442691.

It is an arithmetic number, because the mean of its divisors is an integer number (3784682880).

Almost surely, 2^56656562201 is an apocalyptic number.

It is an amenable number.

56656562201 is a deficient number, since it is larger than the sum of its proper divisors (3898363879).

56656562201 is a wasteful number, since it uses less digits than its factorization.

56656562201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40624.

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 56656562201 in words is "fifty-six billion, six hundred fifty-six million, five hundred sixty-two thousand, two hundred one".