56056866054861 has 24 divisors (see below), whose sum is σ = 88795244200320. Its totient is φ = 31350952440192.

The previous prime is 56056866054857. The next prime is 56056866054877. The reversal of 56056866054861 is 16845066865065.

It is not a de Polignac number, because 56056866054861 - 2² = 56056866054857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56056866054792 and 56056866054801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56056866054851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4056793356 + ... + 4056807173.

It is an arithmetic number, because the mean of its divisors is an integer number (3699801841680).

Almost surely, 2^{56056866054861} is an apocalyptic number.

It is an amenable number.

56056866054861 is a deficient number, since it is larger than the sum of its proper divisors (32738378145459).

56056866054861 is a wasteful number, since it uses less digits than its factorization.

56056866054861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8113600593 (or 8113600586 counting only the distinct ones).

The product of its (nonzero) digits is 248832000, while the sum is 66.

The spelling of 56056866054861 in words is "fifty-six trillion, fifty-six billion, eight hundred sixty-six million, fifty-four thousand, eight hundred sixty-one".