20554684683422 has 4 divisors (see below), whose sum is σ = 30832027025136. Its totient is φ = 10277342341710.

The previous prime is 20554684683413. The next prime is 20554684683461. The reversal of 20554684683422 is 22438648645502.

It is a happy number.

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 (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5138671170854 + ... + 5138671170857.

It is an arithmetic number, because the mean of its divisors is an integer number (7708006756284).

Almost surely, 2^{20554684683422} is an apocalyptic number.

20554684683422 is a deficient number, since it is larger than the sum of its proper divisors (10277342341714).

20554684683422 is a wasteful number, since it uses less digits than its factorization.

20554684683422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10277342341713.

The product of its (nonzero) digits is 88473600, while the sum is 59.

The spelling of 20554684683422 in words is "twenty trillion, five hundred fifty-four billion, six hundred eighty-four million, six hundred eighty-three thousand, four hundred twenty-two".