56660005550611 has 16 divisors (see below), whose sum is σ = 58215563491680. Its totient is φ = 55124311818240.

The previous prime is 56660005550591. The next prime is 56660005550693. The reversal of 56660005550611 is 11605550006665.

It is a cyclic number.

It is not a de Polignac number, because 56660005550611 - 2¹⁹ = 56660005026323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56660005556611) 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, 464057091 + ... + 464179171.

It is an arithmetic number, because the mean of its divisors is an integer number (3638472718230).

Almost surely, 2^{56660005550611} is an apocalyptic number.

56660005550611 is a deficient number, since it is larger than the sum of its proper divisors (1555557941069).

56660005550611 is a wasteful number, since it uses less digits than its factorization.

56660005550611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203334.

The product of its (nonzero) digits is 810000, while the sum is 46.

The spelling of 56660005550611 in words is "fifty-six trillion, six hundred sixty billion, five million, five hundred fifty thousand, six hundred eleven".