20037565741 has 2 divisors, whose sum is σ = 20037565742. Its totient is φ = 20037565740.

The previous prime is 20037565739. The next prime is 20037565817. The reversal of 20037565741 is 14756573002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12397931716 + 7639634025 = 111346^2 + 87405^2 .

It is a cyclic number.

It is not a de Polignac number, because 20037565741 - 2¹ = 20037565739 is a prime.

Together with 20037565739, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20037565694 and 20037565703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20037545741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10018782870 + 10018782871.

It is an arithmetic number, because the mean of its divisors is an integer number (10018782871).

Almost surely, 2^20037565741 is an apocalyptic number.

It is an amenable number.

20037565741 is a deficient number, since it is larger than the sum of its proper divisors (1).

20037565741 is an equidigital number, since it uses as much as digits as its factorization.

20037565741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 176400, while the sum is 40.

The spelling of 20037565741 in words is "twenty billion, thirty-seven million, five hundred sixty-five thousand, seven hundred forty-one".