20344650601397 has 2 divisors, whose sum is σ = 20344650601398. Its totient is φ = 20344650601396.

The previous prime is 20344650601393. The next prime is 20344650601403. The reversal of 20344650601397 is 79310605644302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17902934966596 + 2441715634801 = 4231186^2 + 1562599^2 .

It is a cyclic number.

It is not a de Polignac number, because 20344650601397 - 2² = 20344650601393 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20344650601393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10172325300698 + 10172325300699.

It is an arithmetic number, because the mean of its divisors is an integer number (10172325300699).

Almost surely, 2^{20344650601397} is an apocalyptic number.

It is an amenable number.

20344650601397 is a deficient number, since it is larger than the sum of its proper divisors (1).

20344650601397 is an equidigital number, since it uses as much as digits as its factorization.

20344650601397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 50.

The spelling of 20344650601397 in words is "twenty trillion, three hundred forty-four billion, six hundred fifty million, six hundred one thousand, three hundred ninety-seven".