20344650404051 has 2 divisors, whose sum is σ = 20344650404052. Its totient is φ = 20344650404050.

The previous prime is 20344650404003. The next prime is 20344650404069. The reversal of 20344650404051 is 15040405644302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20344650404051 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 20344650403996 and 20344650404014.

It is not a weakly prime, because it can be changed into another prime (20344650404251) 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, 10172325202025 + 10172325202026.

It is an arithmetic number, because the mean of its divisors is an integer number (10172325202026).

Almost surely, 2^{20344650404051} is an apocalyptic number.

20344650404051 is a deficient number, since it is larger than the sum of its proper divisors (1).

20344650404051 is an equidigital number, since it uses as much as digits as its factorization.

20344650404051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 230400, while the sum is 38.

The spelling of 20344650404051 in words is "twenty trillion, three hundred forty-four billion, six hundred fifty million, four hundred four thousand, fifty-one".