20544456422 has 16 divisors (see below), whose sum is σ = 35220940800. Its totient is φ = 8804298888.

The previous prime is 20544456407. The next prime is 20544456481. The reversal of 20544456422 is 22465444502.

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, 419579 + ... + 465977.

It is an arithmetic number, because the mean of its divisors is an integer number (2201308800).

Almost surely, 2^20544456422 is an apocalyptic number.

20544456422 is a deficient number, since it is larger than the sum of its proper divisors (14676484378).

20544456422 is a wasteful number, since it uses less digits than its factorization.

20544456422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78035.

The product of its (nonzero) digits is 307200, while the sum is 38.

The spelling of 20544456422 in words is "twenty billion, five hundred forty-four million, four hundred fifty-six thousand, four hundred twenty-two".