165353143653371 has 2 divisors, whose sum is σ = 165353143653372. Its totient is φ = 165353143653370.

The previous prime is 165353143653223. The next prime is 165353143653409. The reversal of 165353143653371 is 173356341353561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165353143653371 - 2²⁶ = 165353076544507 is a prime.

It is not a weakly prime, because it can be changed into another prime (165353143653571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82676571826685 + 82676571826686.

It is an arithmetic number, because the mean of its divisors is an integer number (82676571826686).

Almost surely, 2^{165353143653371} is an apocalyptic number.

165353143653371 is a deficient number, since it is larger than the sum of its proper divisors (1).

165353143653371 is an equidigital number, since it uses as much as digits as its factorization.

165353143653371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30618000, while the sum is 56.

The spelling of 165353143653371 in words is "one hundred sixty-five trillion, three hundred fifty-three billion, one hundred forty-three million, six hundred fifty-three thousand, three hundred seventy-one".