165395484593501 has 2 divisors, whose sum is σ = 165395484593502. Its totient is φ = 165395484593500.

The previous prime is 165395484593473. The next prime is 165395484593513. The reversal of 165395484593501 is 105395484593561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164958728827876 + 436755765625 = 12843626^2 + 660875^2 .

It is a cyclic number.

It is not a de Polignac number, because 165395484593501 - 2¹⁴ = 165395484577117 is a prime.

It is a super-2 number, since 2×165395484593501² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165395484593551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82697742296750 + 82697742296751.

It is an arithmetic number, because the mean of its divisors is an integer number (82697742296751).

Almost surely, 2^{165395484593501} is an apocalyptic number.

It is an amenable number.

165395484593501 is a deficient number, since it is larger than the sum of its proper divisors (1).

165395484593501 is an equidigital number, since it uses as much as digits as its factorization.

165395484593501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920000, while the sum is 68.

The spelling of 165395484593501 in words is "one hundred sixty-five trillion, three hundred ninety-five billion, four hundred eighty-four million, five hundred ninety-three thousand, five hundred one".