165771376103 has 2 divisors, whose sum is σ = 165771376104. Its totient is φ = 165771376102.

The previous prime is 165771376091. The next prime is 165771376171. The reversal of 165771376103 is 301673177561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165771376103 - 2⁴ = 165771376087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165771316103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82885688051 + 82885688052.

It is an arithmetic number, because the mean of its divisors is an integer number (82885688052).

Almost surely, 2^165771376103 is an apocalyptic number.

165771376103 is a deficient number, since it is larger than the sum of its proper divisors (1).

165771376103 is an equidigital number, since it uses as much as digits as its factorization.

165771376103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 555660, while the sum is 47.

The spelling of 165771376103 in words is "one hundred sixty-five billion, seven hundred seventy-one million, three hundred seventy-six thousand, one hundred three".