20332402049 has 2 divisors, whose sum is σ = 20332402050. Its totient is φ = 20332402048.

The previous prime is 20332402039. The next prime is 20332402061. The reversal of 20332402049 is 94020423302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10610442049 + 9721960000 = 103007^2 + 98600^2 .

It is a cyclic number.

It is not a de Polignac number, because 20332402049 - 2³² = 16037434753 is a prime.

It is not a weakly prime, because it can be changed into another prime (20332402039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166201024 + 10166201025.

It is an arithmetic number, because the mean of its divisors is an integer number (10166201025).

Almost surely, 2^20332402049 is an apocalyptic number.

It is an amenable number.

20332402049 is a deficient number, since it is larger than the sum of its proper divisors (1).

20332402049 is an equidigital number, since it uses as much as digits as its factorization.

20332402049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 29.

The spelling of 20332402049 in words is "twenty billion, three hundred thirty-two million, four hundred two thousand, forty-nine".