56616656006 has 4 divisors (see below), whose sum is σ = 84924984012. Its totient is φ = 28308328002.

The previous prime is 56616655999. The next prime is 56616656023. The reversal of 56616656006 is 60065661665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60065661665 = 5 ⋅12013132333.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 14154164000 + ... + 14154164003.

It is an arithmetic number, because the mean of its divisors is an integer number (21231246003).

Almost surely, 2^56616656006 is an apocalyptic number.

56616656006 is a deficient number, since it is larger than the sum of its proper divisors (28308328006).

56616656006 is a wasteful number, since it uses less digits than its factorization.

56616656006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28308328005.

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 56616656006 in words is "fifty-six billion, six hundred sixteen million, six hundred fifty-six thousand, six".