20068754053637 has 2 divisors, whose sum is σ = 20068754053638. Its totient is φ = 20068754053636.

The previous prime is 20068754053609. The next prime is 20068754053741. The reversal of 20068754053637 is 73635045786002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16045464251041 + 4023289802596 = 4005679^2 + 2005814^2 .

It is a cyclic number.

It is not a de Polignac number, because 20068754053637 - 2⁶ = 20068754053573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20068754053237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10034377026818 + 10034377026819.

It is an arithmetic number, because the mean of its divisors is an integer number (10034377026819).

Almost surely, 2^{20068754053637} is an apocalyptic number.

It is an amenable number.

20068754053637 is a deficient number, since it is larger than the sum of its proper divisors (1).

20068754053637 is an equidigital number, since it uses as much as digits as its factorization.

20068754053637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25401600, while the sum is 56.

The spelling of 20068754053637 in words is "twenty trillion, sixty-eight billion, seven hundred fifty-four million, fifty-three thousand, six hundred thirty-seven".