165764439083 has 2 divisors, whose sum is σ = 165764439084. Its totient is φ = 165764439082.

The previous prime is 165764439067. The next prime is 165764439143. The reversal of 165764439083 is 380934467561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165764439083 - 2⁴ = 165764439067 is a prime.

It is not a weakly prime, because it can be changed into another prime (165764439023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82882219541 + 82882219542.

It is an arithmetic number, because the mean of its divisors is an integer number (82882219542).

Almost surely, 2^165764439083 is an apocalyptic number.

165764439083 is a deficient number, since it is larger than the sum of its proper divisors (1).

165764439083 is an equidigital number, since it uses as much as digits as its factorization.

165764439083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13063680, while the sum is 56.

The spelling of 165764439083 in words is "one hundred sixty-five billion, seven hundred sixty-four million, four hundred thirty-nine thousand, eighty-three".