20050737672401 has 2 divisors, whose sum is σ = 20050737672402. Its totient is φ = 20050737672400.

The previous prime is 20050737672397. The next prime is 20050737672431. The reversal of 20050737672401 is 10427673705002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15803614341376 + 4247123331025 = 3975376^2 + 2060855^2 .

It is a cyclic number.

It is not a de Polignac number, because 20050737672401 - 2² = 20050737672397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20050737672431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10025368836200 + 10025368836201.

It is an arithmetic number, because the mean of its divisors is an integer number (10025368836201).

Almost surely, 2^{20050737672401} is an apocalyptic number.

It is an amenable number.

20050737672401 is a deficient number, since it is larger than the sum of its proper divisors (1).

20050737672401 is an equidigital number, since it uses as much as digits as its factorization.

20050737672401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 493920, while the sum is 44.

The spelling of 20050737672401 in words is "twenty trillion, fifty billion, seven hundred thirty-seven million, six hundred seventy-two thousand, four hundred one".