56660066042 has 8 divisors (see below), whose sum is σ = 84991274676. Its totient is φ = 28329641152.

The previous prime is 56660066027. The next prime is 56660066051. The reversal of 56660066042 is 24066006665.

It can be written as a sum of positive squares in 2 ways, for example, as 55564389841 + 1095676201 = 235721^2 + 33101^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43148 + ... + 339384.

Almost surely, 2^56660066042 is an apocalyptic number.

56660066042 is a deficient number, since it is larger than the sum of its proper divisors (28331208634).

56660066042 is a wasteful number, since it uses less digits than its factorization.

56660066042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391872.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 56660066042 in words is "fifty-six billion, six hundred sixty million, sixty-six thousand, forty-two".