56611305806 has 16 divisors (see below), whose sum is σ = 96664364928. Its totient is φ = 24613611000.

The previous prime is 56611305799. The next prime is 56611305811. The reversal of 56611305806 is 60850311665.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55939520 + ... + 55940531.

It is an arithmetic number, because the mean of its divisors is an integer number (6041522808).

Almost surely, 2^56611305806 is an apocalyptic number.

56611305806 is a deficient number, since it is larger than the sum of its proper divisors (40053059122).

56611305806 is a wasteful number, since it uses less digits than its factorization.

56611305806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111880087.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 56611305806 in words is "fifty-six billion, six hundred eleven million, three hundred five thousand, eight hundred six".