20516236243422 has 32 divisors (see below), whose sum is σ = 41266827786240. Its totient is φ = 6799720097280.

The previous prime is 20516236243379. The next prime is 20516236243453. The reversal of 20516236243422 is 22434263261502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1814772 + ... + 6657767.

It is an arithmetic number, because the mean of its divisors is an integer number (1289588368320).

Almost surely, 2^{20516236243422} is an apocalyptic number.

20516236243422 is an abundant number, since it is smaller than the sum of its proper divisors (20750591542818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20516236243422 is a wasteful number, since it uses less digits than its factorization.

20516236243422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8474848.

The product of its (nonzero) digits is 829440, while the sum is 42.

The spelling of 20516236243422 in words is "twenty trillion, five hundred sixteen billion, two hundred thirty-six million, two hundred forty-three thousand, four hundred twenty-two".