20046660047 has 2 divisors, whose sum is σ = 20046660048. Its totient is φ = 20046660046.

The previous prime is 20046659959. The next prime is 20046660077. The reversal of 20046660047 is 74006664002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20046660047 - 2²⁶ = 19979551183 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20046659989 and 20046660016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20046660077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10023330023 + 10023330024.

It is an arithmetic number, because the mean of its divisors is an integer number (10023330024).

Almost surely, 2^20046660047 is an apocalyptic number.

20046660047 is a deficient number, since it is larger than the sum of its proper divisors (1).

20046660047 is an equidigital number, since it uses as much as digits as its factorization.

20046660047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 35.

The spelling of 20046660047 in words is "twenty billion, forty-six million, six hundred sixty thousand, forty-seven".