56171670143 has 2 divisors, whose sum is σ = 56171670144. Its totient is φ = 56171670142.

The previous prime is 56171670119. The next prime is 56171670209. The reversal of 56171670143 is 34107617165.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56171670143 - 2¹⁰ = 56171669119 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56171670143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56171670103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28085835071 + 28085835072.

It is an arithmetic number, because the mean of its divisors is an integer number (28085835072).

Almost surely, 2^56171670143 is an apocalyptic number.

56171670143 is a deficient number, since it is larger than the sum of its proper divisors (1).

56171670143 is an equidigital number, since it uses as much as digits as its factorization.

56171670143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 56171670143 in words is "fifty-six billion, one hundred seventy-one million, six hundred seventy thousand, one hundred forty-three".