165166596044071 has 2 divisors, whose sum is σ = 165166596044072. Its totient is φ = 165166596044070.

The previous prime is 165166596044053. The next prime is 165166596044101. The reversal of 165166596044071 is 170440695661561.

165166596044071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165166596044071 - 2²³ = 165166587655463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165166596044041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82583298022035 + 82583298022036.

It is an arithmetic number, because the mean of its divisors is an integer number (82583298022036).

Almost surely, 2^{165166596044071} is an apocalyptic number.

165166596044071 is a deficient number, since it is larger than the sum of its proper divisors (1).

165166596044071 is an equidigital number, since it uses as much as digits as its factorization.

165166596044071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32659200, while the sum is 61.

The spelling of 165166596044071 in words is "one hundred sixty-five trillion, one hundred sixty-six billion, five hundred ninety-six million, forty-four thousand, seventy-one".