20168205530 has 16 divisors (see below), whose sum is σ = 39603021984. Its totient is φ = 7333892880.

The previous prime is 20168205521. The next prime is 20168205571. The reversal of 20168205530 is 3550286102.

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 in 7 ways as a sum of consecutive naturals, for example, 91673552 + ... + 91673771.

It is an arithmetic number, because the mean of its divisors is an integer number (2475188874).

Almost surely, 2^20168205530 is an apocalyptic number.

20168205530 is a deficient number, since it is larger than the sum of its proper divisors (19434816454).

20168205530 is a wasteful number, since it uses less digits than its factorization.

20168205530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183347341.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 20168205530 in words is "twenty billion, one hundred sixty-eight million, two hundred five thousand, five hundred thirty".