20322164135 has 16 divisors (see below), whose sum is σ = 30014273856. Its totient is φ = 12863259648.

The previous prime is 20322164131. The next prime is 20322164141. The reversal of 20322164135 is 53146122302.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20322164135 - 2² = 20322164131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20322164098 and 20322164107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20322164131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22331594 + ... + 22332503.

It is an arithmetic number, because the mean of its divisors is an integer number (1875892116).

Almost surely, 2^20322164135 is an apocalyptic number.

20322164135 is a deficient number, since it is larger than the sum of its proper divisors (9692109721).

20322164135 is a wasteful number, since it uses less digits than its factorization.

20322164135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44664122.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 20322164135 its reverse (53146122302), we get a palindrome (73468286437).

The spelling of 20322164135 in words is "twenty billion, three hundred twenty-two million, one hundred sixty-four thousand, one hundred thirty-five".