20461370659 has 2 divisors, whose sum is σ = 20461370660. Its totient is φ = 20461370658.

The previous prime is 20461370627. The next prime is 20461370753. The reversal of 20461370659 is 95607316402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20461370659 - 2⁵ = 20461370627 is a prime.

It is not a weakly prime, because it can be changed into another prime (20461370759) 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, 10230685329 + 10230685330.

It is an arithmetic number, because the mean of its divisors is an integer number (10230685330).

Almost surely, 2^20461370659 is an apocalyptic number.

20461370659 is a deficient number, since it is larger than the sum of its proper divisors (1).

20461370659 is an equidigital number, since it uses as much as digits as its factorization.

20461370659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 20461370659 in words is "twenty billion, four hundred sixty-one million, three hundred seventy thousand, six hundred fifty-nine".