162078766549523 has 2 divisors, whose sum is σ = 162078766549524. Its totient is φ = 162078766549522.

The previous prime is 162078766549477. The next prime is 162078766549529. The reversal of 162078766549523 is 325945667870261.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 162078766549523 - 2¹⁸ = 162078766287379 is a prime.

It is not a weakly prime, because it can be changed into another prime (162078766549529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81039383274761 + 81039383274762.

It is an arithmetic number, because the mean of its divisors is an integer number (81039383274762).

It is a 1-persistent number, because it is pandigital, but 2⋅162078766549523 = 324157533099046 is not.

Almost surely, 2^{162078766549523} is an apocalyptic number.

162078766549523 is a deficient number, since it is larger than the sum of its proper divisors (1).

162078766549523 is an equidigital number, since it uses as much as digits as its factorization.

162078766549523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 914457600, while the sum is 71.

The spelling of 162078766549523 in words is "one hundred sixty-two trillion, seventy-eight billion, seven hundred sixty-six million, five hundred forty-nine thousand, five hundred twenty-three".