56666611016 has 16 divisors (see below), whose sum is σ = 107281449600. Its totient is φ = 28058224464.

The previous prime is 56666611013. The next prime is 56666611021. The reversal of 56666611016 is 61011666665.

It is a super-2 number, since 2×56666611016² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56666611013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34384256 + ... + 34385903.

It is an arithmetic number, because the mean of its divisors is an integer number (6705090600).

Almost surely, 2^56666611016 is an apocalyptic number.

It is an amenable number.

56666611016 is a deficient number, since it is larger than the sum of its proper divisors (50614838584).

56666611016 is a wasteful number, since it uses less digits than its factorization.

56666611016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68770268 (or 68770264 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 56666611016 in words is "fifty-six billion, six hundred sixty-six million, six hundred eleven thousand, sixteen".