56617001711771 has 16 divisors (see below), whose sum is σ = 59093008773120. Its totient is φ = 54142196438880.

The previous prime is 56617001711741. The next prime is 56617001711779. The reversal of 56617001711771 is 17711710071665.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56617001711771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56617001711779) 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, 2783383061 + ... + 2783403401.

It is an arithmetic number, because the mean of its divisors is an integer number (3693313048320).

Almost surely, 2^{56617001711771} is an apocalyptic number.

56617001711771 is a deficient number, since it is larger than the sum of its proper divisors (2476007061349).

56617001711771 is a wasteful number, since it uses less digits than its factorization.

56617001711771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43906.

The product of its (nonzero) digits is 432180, while the sum is 50.

The spelling of 56617001711771 in words is "fifty-six trillion, six hundred seventeen billion, one million, seven hundred eleven thousand, seven hundred seventy-one".