20243613659 has 8 divisors (see below), whose sum is σ = 21053978352. Its totient is φ = 19448684640.

The previous prime is 20243613557. The next prime is 20243613661. The reversal of 20243613659 is 95631634202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20243613659 - 2¹² = 20243609563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20243613259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3856244 + ... + 3861489.

It is an arithmetic number, because the mean of its divisors is an integer number (2631747294).

Almost surely, 2^20243613659 is an apocalyptic number.

20243613659 is a deficient number, since it is larger than the sum of its proper divisors (810364693).

20243613659 is an equidigital number, since it uses as much as digits as its factorization.

20243613659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7717837.

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 20243613659 in words is "twenty billion, two hundred forty-three million, six hundred thirteen thousand, six hundred fifty-nine".