165151634432563 has 2 divisors, whose sum is σ = 165151634432564. Its totient is φ = 165151634432562.

The previous prime is 165151634432527. The next prime is 165151634432591. The reversal of 165151634432563 is 365234436151561.

It is a strong prime.

It is an emirp because it is prime and its reverse (365234436151561) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165151634432563 is a prime.

It is not a weakly prime, because it can be changed into another prime (165151634432513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82575817216281 + 82575817216282.

It is an arithmetic number, because the mean of its divisors is an integer number (82575817216282).

Almost surely, 2^{165151634432563} is an apocalyptic number.

165151634432563 is a deficient number, since it is larger than the sum of its proper divisors (1).

165151634432563 is an equidigital number, since it uses as much as digits as its factorization.

165151634432563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328000, while the sum is 55.

The spelling of 165151634432563 in words is "one hundred sixty-five trillion, one hundred fifty-one billion, six hundred thirty-four million, four hundred thirty-two thousand, five hundred sixty-three".