20434554422 has 4 divisors (see below), whose sum is σ = 30651831636. Its totient is φ = 10217277210.

The previous prime is 20434554407. The next prime is 20434554451. The reversal of 20434554422 is 22445543402.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5108638604 + ... + 5108638607.

It is an arithmetic number, because the mean of its divisors is an integer number (7662957909).

Almost surely, 2^20434554422 is an apocalyptic number.

20434554422 is a deficient number, since it is larger than the sum of its proper divisors (10217277214).

20434554422 is a wasteful number, since it uses less digits than its factorization.

20434554422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10217277213.

The product of its (nonzero) digits is 153600, while the sum is 35.

The spelling of 20434554422 in words is "twenty billion, four hundred thirty-four million, five hundred fifty-four thousand, four hundred twenty-two".