20658269079 has 48 divisors (see below), whose sum is σ = 35600248320. Its totient is φ = 11726402400.

The previous prime is 20658269069. The next prime is 20658269081. The reversal of 20658269079 is 97096285602.

It is not a de Polignac number, because 20658269079 - 2⁴ = 20658269063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20658269069) 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 in 47 ways as a sum of consecutive naturals, for example, 216637 + ... + 297065.

It is an arithmetic number, because the mean of its divisors is an integer number (741671840).

Almost surely, 2^20658269079 is an apocalyptic number.

20658269079 is a deficient number, since it is larger than the sum of its proper divisors (14941979241).

20658269079 is an equidigital number, since it uses as much as digits as its factorization.

20658269079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80602 (or 80590 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 20658269079 in words is "twenty billion, six hundred fifty-eight million, two hundred sixty-nine thousand, seventy-nine".