20164323392 has 14 divisors (see below), whose sum is σ = 40013579358. Its totient is φ = 10082161664.

The previous prime is 20164323391. The next prime is 20164323397. The reversal of 20164323392 is 29332346102.

It can be written as a sum of positive squares in only one way, i.e., 18600595456 + 1563727936 = 136384^2 + 39544^2 .

It is not an unprimeable number, because it can be changed into a prime (20164323391) by changing a digit.

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 as a sum of consecutive naturals, namely, 157533713 + ... + 157533840.

Almost surely, 2^20164323392 is an apocalyptic number.

It is an amenable number.

20164323392 is a deficient number, since it is larger than the sum of its proper divisors (19849255966).

20164323392 is an equidigital number, since it uses as much as digits as its factorization.

20164323392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315067565 (or 315067555 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 35.

Adding to 20164323392 its reverse (29332346102), we get a palindrome (49496669494).

The spelling of 20164323392 in words is "twenty billion, one hundred sixty-four million, three hundred twenty-three thousand, three hundred ninety-two".