20195740401037 has 2 divisors, whose sum is σ = 20195740401038. Its totient is φ = 20195740401036.

The previous prime is 20195740400999. The next prime is 20195740401043. The reversal of 20195740401037 is 73010404759102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14539472320356 + 5656268080681 = 3813066^2 + 2378291^2 .

It is a cyclic number.

It is not a de Polignac number, because 20195740401037 - 2¹¹ = 20195740398989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20195740400984 and 20195740401002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20195740401077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10097870200518 + 10097870200519.

It is an arithmetic number, because the mean of its divisors is an integer number (10097870200519).

Almost surely, 2^{20195740401037} is an apocalyptic number.

It is an amenable number.

20195740401037 is a deficient number, since it is larger than the sum of its proper divisors (1).

20195740401037 is an equidigital number, since it uses as much as digits as its factorization.

20195740401037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 20195740401037 in words is "twenty trillion, one hundred ninety-five billion, seven hundred forty million, four hundred one thousand, thirty-seven".