165673135465847 has 2 divisors, whose sum is σ = 165673135465848. Its totient is φ = 165673135465846.

The previous prime is 165673135465843. The next prime is 165673135465891. The reversal of 165673135465847 is 748564531376561.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165673135465847 - 2² = 165673135465843 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165673135465843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82836567732923 + 82836567732924.

It is an arithmetic number, because the mean of its divisors is an integer number (82836567732924).

Almost surely, 2^{165673135465847} is an apocalyptic number.

165673135465847 is a deficient number, since it is larger than the sum of its proper divisors (1).

165673135465847 is an equidigital number, since it uses as much as digits as its factorization.

165673135465847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096000, while the sum is 71.

The spelling of 165673135465847 in words is "one hundred sixty-five trillion, six hundred seventy-three billion, one hundred thirty-five million, four hundred sixty-five thousand, eight hundred forty-seven".