56601001066663 has 16 divisors (see below), whose sum is σ = 56893164281856. Its totient is φ = 56309193480960.

The previous prime is 56601001066661. The next prime is 56601001066693. The reversal of 56601001066663 is 36666010010665.

It is a cyclic number.

It is not a de Polignac number, because 56601001066663 - 2¹ = 56601001066661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56601001066661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2480639031 + ... + 2480661847.

It is an arithmetic number, because the mean of its divisors is an integer number (3555822767616).

Almost surely, 2^{56601001066663} is an apocalyptic number.

56601001066663 is a deficient number, since it is larger than the sum of its proper divisors (292163215193).

56601001066663 is a wasteful number, since it uses less digits than its factorization.

56601001066663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30054.

The product of its (nonzero) digits is 699840, while the sum is 46.

The spelling of 56601001066663 in words is "fifty-six trillion, six hundred one billion, one million, sixty-six thousand, six hundred sixty-three".