20415323422 has 16 divisors (see below), whose sum is σ = 32986341360. Its totient is φ = 9420244992.

The previous prime is 20415323419. The next prime is 20415323441. The reversal of 20415323422 is 22432351402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23454 + ... + 203422.

It is an arithmetic number, because the mean of its divisors is an integer number (2061646335).

Almost surely, 2^20415323422 is an apocalyptic number.

20415323422 is a deficient number, since it is larger than the sum of its proper divisors (12571017938).

20415323422 is a wasteful number, since it uses less digits than its factorization.

20415323422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184347.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 20415323422 its reverse (22432351402), we get a palindrome (42847674824).

The spelling of 20415323422 in words is "twenty billion, four hundred fifteen million, three hundred twenty-three thousand, four hundred twenty-two".