56615556606 has 32 divisors (see below), whose sum is σ = 130351576320. Its totient is φ = 16057799616.

The previous prime is 56615556601. The next prime is 56615556631. The reversal of 56615556606 is 60665551665.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56615556601) 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, 4913916 + ... + 4925423.

It is an arithmetic number, because the mean of its divisors is an integer number (4073486760).

Almost surely, 2^56615556606 is an apocalyptic number.

56615556606 is an abundant number, since it is smaller than the sum of its proper divisors (73736019714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56615556606 is a wasteful number, since it uses less digits than its factorization.

56615556606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9839488.

The product of its (nonzero) digits is 4860000, while the sum is 51.

The spelling of 56615556606 in words is "fifty-six billion, six hundred fifteen million, five hundred fifty-six thousand, six hundred six".