66122201162117 has 2 divisors, whose sum is σ = 66122201162118. Its totient is φ = 66122201162116.

The previous prime is 66122201162071. The next prime is 66122201162123. The reversal of 66122201162117 is 71126110222166.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42542106149761 + 23580095012356 = 6522431^2 + 4855934^2 .

It is a cyclic number.

It is not a de Polignac number, because 66122201162117 - 2¹² = 66122201158021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66122201462117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33061100581058 + 33061100581059.

It is an arithmetic number, because the mean of its divisors is an integer number (33061100581059).

Almost surely, 2^{66122201162117} is an apocalyptic number.

It is an amenable number.

66122201162117 is a deficient number, since it is larger than the sum of its proper divisors (1).

66122201162117 is an equidigital number, since it uses as much as digits as its factorization.

66122201162117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 38.

The spelling of 66122201162117 in words is "sixty-six trillion, one hundred twenty-two billion, two hundred one million, one hundred sixty-two thousand, one hundred seventeen".