163162565551 has 2 divisors, whose sum is σ = 163162565552. Its totient is φ = 163162565550.

The previous prime is 163162565543. The next prime is 163162565557. The reversal of 163162565551 is 155565261361.

It is a strong prime.

It is an emirp because it is prime and its reverse (155565261361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163162565551 - 2³ = 163162565543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163162565557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81581282775 + 81581282776.

It is an arithmetic number, because the mean of its divisors is an integer number (81581282776).

Almost surely, 2^163162565551 is an apocalyptic number.

163162565551 is a deficient number, since it is larger than the sum of its proper divisors (1).

163162565551 is an equidigital number, since it uses as much as digits as its factorization.

163162565551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 810000, while the sum is 46.

The spelling of 163162565551 in words is "one hundred sixty-three billion, one hundred sixty-two million, five hundred sixty-five thousand, five hundred fifty-one".