165053553041057 has 2 divisors, whose sum is σ = 165053553041058. Its totient is φ = 165053553041056.

The previous prime is 165053553041051. The next prime is 165053553041173. The reversal of 165053553041057 is 750140355350561.

165053553041057 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 can be written as a sum of positive squares in only one way, i.e., 164168766362896 + 884786678161 = 12812836^2 + 940631^2 .

It is a cyclic number.

It is not a de Polignac number, because 165053553041057 - 2³⁰ = 165052479299233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165053553040996 and 165053553041014.

It is not a weakly prime, because it can be changed into another prime (165053553041051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82526776520528 + 82526776520529.

It is an arithmetic number, because the mean of its divisors is an integer number (82526776520529).

Almost surely, 2^{165053553041057} is an apocalyptic number.

It is an amenable number.

165053553041057 is a deficient number, since it is larger than the sum of its proper divisors (1).

165053553041057 is an equidigital number, since it uses as much as digits as its factorization.

165053553041057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4725000, while the sum is 50.

The spelling of 165053553041057 in words is "one hundred sixty-five trillion, fifty-three billion, five hundred fifty-three million, forty-one thousand, fifty-seven".