101566106497 has 2 divisors, whose sum is σ = 101566106498. Its totient is φ = 101566106496.

The previous prime is 101566106459. The next prime is 101566106519. The reversal of 101566106497 is 794601665101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61231007601 + 40335098896 = 247449^2 + 200836^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101566106497 is a prime.

It is a super-2 number, since 2×101566106497² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101566107497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50783053248 + 50783053249.

It is an arithmetic number, because the mean of its divisors is an integer number (50783053249).

Almost surely, 2^101566106497 is an apocalyptic number.

It is an amenable number.

101566106497 is a deficient number, since it is larger than the sum of its proper divisors (1).

101566106497 is an equidigital number, since it uses as much as digits as its factorization.

101566106497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 101566106497 in words is "one hundred one billion, five hundred sixty-six million, one hundred six thousand, four hundred ninety-seven".