20035043659 has 2 divisors, whose sum is σ = 20035043660. Its totient is φ = 20035043658.

The previous prime is 20035043657. The next prime is 20035043663. The reversal of 20035043659 is 95634053002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20035043659 - 2¹ = 20035043657 is a prime.

It is a super-2 number, since 2×20035043659² (a number of 21 digits) contains 22 as substring.

Together with 20035043657, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20035043653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10017521829 + 10017521830.

It is an arithmetic number, because the mean of its divisors is an integer number (10017521830).

Almost surely, 2^20035043659 is an apocalyptic number.

20035043659 is a deficient number, since it is larger than the sum of its proper divisors (1).

20035043659 is an equidigital number, since it uses as much as digits as its factorization.

20035043659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 20035043659 in words is "twenty billion, thirty-five million, forty-three thousand, six hundred fifty-nine".