20165047270597 has 2 divisors, whose sum is σ = 20165047270598. Its totient is φ = 20165047270596.

The previous prime is 20165047270523. The next prime is 20165047270679. The reversal of 20165047270597 is 79507274056102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19598408686081 + 566638584516 = 4427009^2 + 752754^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20165047270597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20165047270097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10082523635298 + 10082523635299.

It is an arithmetic number, because the mean of its divisors is an integer number (10082523635299).

Almost surely, 2^{20165047270597} is an apocalyptic number.

It is an amenable number.

20165047270597 is a deficient number, since it is larger than the sum of its proper divisors (1).

20165047270597 is an equidigital number, since it uses as much as digits as its factorization.

20165047270597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7408800, while the sum is 55.

The spelling of 20165047270597 in words is "twenty trillion, one hundred sixty-five billion, forty-seven million, two hundred seventy thousand, five hundred ninety-seven".