165755605159 has 2 divisors, whose sum is σ = 165755605160. Its totient is φ = 165755605158.

The previous prime is 165755605133. The next prime is 165755605261. The reversal of 165755605159 is 951506557561.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165755605159 - 2¹³ = 165755596967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165755605759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82877802579 + 82877802580.

It is an arithmetic number, because the mean of its divisors is an integer number (82877802580).

Almost surely, 2^165755605159 is an apocalyptic number.

165755605159 is a deficient number, since it is larger than the sum of its proper divisors (1).

165755605159 is an equidigital number, since it uses as much as digits as its factorization.

165755605159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7087500, while the sum is 55.

The spelling of 165755605159 in words is "one hundred sixty-five billion, seven hundred fifty-five million, six hundred five thousand, one hundred fifty-nine".