56067146881 has 2 divisors, whose sum is σ = 56067146882. Its totient is φ = 56067146880.

The previous prime is 56067146879. The next prime is 56067146899. The reversal of 56067146881 is 18864176065.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53526986881 + 2540160000 = 231359^2 + 50400^2 .

It is a cyclic number.

It is not a de Polignac number, because 56067146881 - 2¹ = 56067146879 is a prime.

It is a super-2 number, since 2×56067146881² (a number of 22 digits) contains 22 as substring.

Together with 56067146879, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (56067146281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28033573440 + 28033573441.

It is an arithmetic number, because the mean of its divisors is an integer number (28033573441).

Almost surely, 2^56067146881 is an apocalyptic number.

It is an amenable number.

56067146881 is a deficient number, since it is larger than the sum of its proper divisors (1).

56067146881 is an equidigital number, since it uses as much as digits as its factorization.

56067146881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 56067146881 in words is "fifty-six billion, sixty-seven million, one hundred forty-six thousand, eight hundred eighty-one".