165206342512151 has 2 divisors, whose sum is σ = 165206342512152. Its totient is φ = 165206342512150.

The previous prime is 165206342512129. The next prime is 165206342512177. The reversal of 165206342512151 is 151215243602561.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165206342512151 - 2⁴² = 160808296001047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165206342512451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82603171256075 + 82603171256076.

It is an arithmetic number, because the mean of its divisors is an integer number (82603171256076).

Almost surely, 2^{165206342512151} is an apocalyptic number.

165206342512151 is a deficient number, since it is larger than the sum of its proper divisors (1).

165206342512151 is an equidigital number, since it uses as much as digits as its factorization.

165206342512151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432000, while the sum is 44.

The spelling of 165206342512151 in words is "one hundred sixty-five trillion, two hundred six billion, three hundred forty-two million, five hundred twelve thousand, one hundred fifty-one".