56660060661 has 16 divisors (see below), whose sum is σ = 75803488320. Its totient is φ = 37645090560.

The previous prime is 56660060627. The next prime is 56660060663. The reversal of 56660060661 is 16606006665.

It is not a de Polignac number, because 56660060661 - 2⁷ = 56660060533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56660060663) 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, 3078061 + ... + 3096413.

It is an arithmetic number, because the mean of its divisors is an integer number (4737718020).

Almost surely, 2^56660060661 is an apocalyptic number.

It is an amenable number.

56660060661 is a deficient number, since it is larger than the sum of its proper divisors (19143427659).

56660060661 is a wasteful number, since it uses less digits than its factorization.

56660060661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21796.

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 56660060661 in words is "fifty-six billion, six hundred sixty million, sixty thousand, six hundred sixty-one".