20872168330 has 16 divisors (see below), whose sum is σ = 40459895784. Its totient is φ = 7706646720.

The previous prime is 20872168313. The next prime is 20872168351. The reversal of 20872168330 is 3386127802.

It can be written as a sum of positive squares in 4 ways, for example, as 19401982681 + 1470185649 = 139291^2 + 38343^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80277441 + ... + 80277700.

Almost surely, 2^20872168330 is an apocalyptic number.

20872168330 is a deficient number, since it is larger than the sum of its proper divisors (19587727454).

20872168330 is a wasteful number, since it uses less digits than its factorization.

20872168330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160555161.

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 20872168330 in words is "twenty billion, eight hundred seventy-two million, one hundred sixty-eight thousand, three hundred thirty".