83556055055117 has 2 divisors, whose sum is σ = 83556055055118. Its totient is φ = 83556055055116.

The previous prime is 83556055055051. The next prime is 83556055055141. The reversal of 83556055055117 is 71155055065538.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54772121870761 + 28783933184356 = 7400819^2 + 5365066^2 .

It is a cyclic number.

It is not a de Polignac number, because 83556055055117 - 2³⁸ = 83281177148173 is a prime.

It is a super-2 number, since 2×83556055055117² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83556055055017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41778027527558 + 41778027527559.

It is an arithmetic number, because the mean of its divisors is an integer number (41778027527559).

Almost surely, 2^{83556055055117} is an apocalyptic number.

It is an amenable number.

83556055055117 is a deficient number, since it is larger than the sum of its proper divisors (1).

83556055055117 is an equidigital number, since it uses as much as digits as its factorization.

83556055055117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15750000, while the sum is 56.

The spelling of 83556055055117 in words is "eighty-three trillion, five hundred fifty-six billion, fifty-five million, fifty-five thousand, one hundred seventeen".