20530010912 has 12 divisors (see below), whose sum is σ = 40418459046. Its totient is φ = 10265005440.

The previous prime is 20530010843. The next prime is 20530010923. The reversal of 20530010912 is 21901003502.

It can be written as a sum of positive squares in only one way, i.e., 20370140176 + 159870736 = 142724^2 + 12644^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 320781389 + ... + 320781452.

Almost surely, 2^20530010912 is an apocalyptic number.

It is an amenable number.

20530010912 is a deficient number, since it is larger than the sum of its proper divisors (19888448134).

20530010912 is an equidigital number, since it uses as much as digits as its factorization.

20530010912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641562851 (or 641562843 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The spelling of 20530010912 in words is "twenty billion, five hundred thirty million, ten thousand, nine hundred twelve".