17162145047 has 2 divisors, whose sum is σ = 17162145048. Its totient is φ = 17162145046.

The previous prime is 17162145043. The next prime is 17162145089. The reversal of 17162145047 is 74054126171.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 17162145047 - 2² = 17162145043 is a prime.

It is a super-2 number, since 2×17162145047² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 17162145047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17162145041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8581072523 + 8581072524.

It is an arithmetic number, because the mean of its divisors is an integer number (8581072524).

Almost surely, 2^17162145047 is an apocalyptic number.

17162145047 is a deficient number, since it is larger than the sum of its proper divisors (1).

17162145047 is an equidigital number, since it uses as much as digits as its factorization.

17162145047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 38.

The spelling of 17162145047 in words is "seventeen billion, one hundred sixty-two million, one hundred forty-five thousand, forty-seven".