20852816163037 has 2 divisors, whose sum is σ = 20852816163038. Its totient is φ = 20852816163036.

The previous prime is 20852816163017. The next prime is 20852816163041. The reversal of 20852816163037 is 73036161825802.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20622306710041 + 230509452996 = 4541179^2 + 480114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20852816163037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20852816163007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10426408081518 + 10426408081519.

It is an arithmetic number, because the mean of its divisors is an integer number (10426408081519).

Almost surely, 2^{20852816163037} is an apocalyptic number.

It is an amenable number.

20852816163037 is a deficient number, since it is larger than the sum of its proper divisors (1).

20852816163037 is an equidigital number, since it uses as much as digits as its factorization.

20852816163037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2903040, while the sum is 52.

Adding to 20852816163037 its reverse (73036161825802), we get a palindrome (93888977988839).

The spelling of 20852816163037 in words is "twenty trillion, eight hundred fifty-two billion, eight hundred sixteen million, one hundred sixty-three thousand, thirty-seven".