162155015550617 has 2 divisors, whose sum is σ = 162155015550618. Its totient is φ = 162155015550616.

The previous prime is 162155015550613. The next prime is 162155015550631. The reversal of 162155015550617 is 716055510551261.

162155015550617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134693108101696 + 27461907448921 = 11605736^2 + 5240411^2 .

It is an emirp because it is prime and its reverse (716055510551261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 162155015550617 - 2² = 162155015550613 is a prime.

It is not a weakly prime, because it can be changed into another prime (162155015550613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81077507775308 + 81077507775309.

It is an arithmetic number, because the mean of its divisors is an integer number (81077507775309).

Almost surely, 2^{162155015550617} is an apocalyptic number.

It is an amenable number.

162155015550617 is a deficient number, since it is larger than the sum of its proper divisors (1).

162155015550617 is an equidigital number, since it uses as much as digits as its factorization.

162155015550617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1575000, while the sum is 50.

The spelling of 162155015550617 in words is "one hundred sixty-two trillion, one hundred fifty-five billion, fifteen million, five hundred fifty thousand, six hundred seventeen".