56660066061 has 8 divisors (see below), whose sum is σ = 75550752864. Its totient is φ = 37771378320.

The previous prime is 56660066051. The next prime is 56660066063. The reversal of 56660066061 is 16066006665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56660066061 - 2¹³ = 56660057869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56660066063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432330 + ... + 547931.

It is an arithmetic number, because the mean of its divisors is an integer number (9443844108).

Almost surely, 2^56660066061 is an apocalyptic number.

It is an amenable number.

56660066061 is a deficient number, since it is larger than the sum of its proper divisors (18890686803).

56660066061 is a wasteful number, since it uses less digits than its factorization.

56660066061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999531.

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

The spelling of 56660066061 in words is "fifty-six billion, six hundred sixty million, sixty-six thousand, sixty-one".