56122155122166 has 48 divisors (see below), whose sum is σ = 145077679914480. Its totient is φ = 16034901462720.

The previous prime is 56122155122161. The next prime is 56122155122191. The reversal of 56122155122166 is 66122155122165.

It is a happy number.

56122155122166 is a `hidden beast` number, since 5 + 6 + 12 + 2 + 1 + 551 + 2 + 21 + 66 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56122155122161) 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, 10605090915 + ... + 10605096206.

It is an arithmetic number, because the mean of its divisors is an integer number (3022451664885).

Almost surely, 2^{56122155122166} is an apocalyptic number.

56122155122166 is an abundant number, since it is smaller than the sum of its proper divisors (88955524792314).

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

56122155122166 is a wasteful number, since it uses less digits than its factorization.

56122155122166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21210187146 (or 21210187133 counting only the distinct ones).

The product of its digits is 432000, while the sum is 45.

Subtracting 56122155122166 from its reverse (66122155122165), we obtain a palindrome (9999999999999).

The spelling of 56122155122166 in words is "fifty-six trillion, one hundred twenty-two billion, one hundred fifty-five million, one hundred twenty-two thousand, one hundred sixty-six".