56706413772161 has 2 divisors, whose sum is σ = 56706413772162. Its totient is φ = 56706413772160.

The previous prime is 56706413772131. The next prime is 56706413772191. The reversal of 56706413772161 is 16127731460765.

It is a balanced prime because it is at equal distance from previous prime (56706413772131) and next prime (56706413772191).

It can be written as a sum of positive squares in only one way, i.e., 54855945990400 + 1850467781761 = 7406480^2 + 1360319^2 .

It is a cyclic number.

It is not a de Polignac number, because 56706413772161 - 2²⁶ = 56706346663297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56706413772097 and 56706413772106.

It is not a weakly prime, because it can be changed into another prime (56706413772101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28353206886080 + 28353206886081.

It is an arithmetic number, because the mean of its divisors is an integer number (28353206886081).

Almost surely, 2^{56706413772161} is an apocalyptic number.

It is an amenable number.

56706413772161 is a deficient number, since it is larger than the sum of its proper divisors (1).

56706413772161 is an equidigital number, since it uses as much as digits as its factorization.

56706413772161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8890560, while the sum is 56.

The spelling of 56706413772161 in words is "fifty-six trillion, seven hundred six billion, four hundred thirteen million, seven hundred seventy-two thousand, one hundred sixty-one".