20530266827 has 8 divisors (see below), whose sum is σ = 23513842176. Its totient is φ = 17559361512.

The previous prime is 20530266817. The next prime is 20530266829. The reversal of 20530266827 is 72866203502.

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

It is not a de Polignac number, because 20530266827 - 2³⁴ = 3350397643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20530266829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3164033 + ... + 3170514.

It is an arithmetic number, because the mean of its divisors is an integer number (2939230272).

Almost surely, 2^20530266827 is an apocalyptic number.

20530266827 is a deficient number, since it is larger than the sum of its proper divisors (2983575349).

20530266827 is an equidigital number, since it uses as much as digits as its factorization.

20530266827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6335017.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 20530266827 in words is "twenty billion, five hundred thirty million, two hundred sixty-six thousand, eight hundred twenty-seven".