16605506005097 has 2 divisors, whose sum is σ = 16605506005098. Its totient is φ = 16605506005096.

The previous prime is 16605506005093. The next prime is 16605506005169. The reversal of 16605506005097 is 79050060550661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13506036603136 + 3099469401961 = 3675056^2 + 1760531^2 .

It is a cyclic number.

It is not a de Polignac number, because 16605506005097 - 2² = 16605506005093 is a prime.

It is not a weakly prime, because it can be changed into another prime (16605506005093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8302753002548 + 8302753002549.

It is an arithmetic number, because the mean of its divisors is an integer number (8302753002549).

Almost surely, 2^{16605506005097} is an apocalyptic number.

It is an amenable number.

16605506005097 is a deficient number, since it is larger than the sum of its proper divisors (1).

16605506005097 is an equidigital number, since it uses as much as digits as its factorization.

16605506005097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701000, while the sum is 50.

The spelling of 16605506005097 in words is "sixteen trillion, six hundred five billion, five hundred six million, five thousand, ninety-seven".