20043652537201 has 2 divisors, whose sum is σ = 20043652537202. Its totient is φ = 20043652537200.

The previous prime is 20043652537187. The next prime is 20043652537217. The reversal of 20043652537201 is 10273525634002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17549195558976 + 2494456978225 = 4189176^2 + 1579385^2 .

It is a cyclic number.

It is not a de Polignac number, because 20043652537201 - 2¹⁹ = 20043652012913 is a prime.

It is not a weakly prime, because it can be changed into another prime (20043652537241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021826268600 + 10021826268601.

It is an arithmetic number, because the mean of its divisors is an integer number (10021826268601).

Almost surely, 2^{20043652537201} is an apocalyptic number.

It is an amenable number.

20043652537201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20043652537201 is an equidigital number, since it uses as much as digits as its factorization.

20043652537201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 40.

The spelling of 20043652537201 in words is "twenty trillion, forty-three billion, six hundred fifty-two million, five hundred thirty-seven thousand, two hundred one".