165755749963 has 2 divisors, whose sum is σ = 165755749964. Its totient is φ = 165755749962.

The previous prime is 165755749949. The next prime is 165755750023. The reversal of 165755749963 is 369947557561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165755749963 - 2⁵ = 165755749931 is a prime.

It is not a weakly prime, because it can be changed into another prime (165755749063) 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, 82877874981 + 82877874982.

It is an arithmetic number, because the mean of its divisors is an integer number (82877874982).

Almost surely, 2^165755749963 is an apocalyptic number.

165755749963 is a deficient number, since it is larger than the sum of its proper divisors (1).

165755749963 is an equidigital number, since it uses as much as digits as its factorization.

165755749963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 214326000, while the sum is 67.

The spelling of 165755749963 in words is "one hundred sixty-five billion, seven hundred fifty-five million, seven hundred forty-nine thousand, nine hundred sixty-three".