20555354022554 has 8 divisors (see below), whose sum is σ = 33204802651860. Its totient is φ = 9487086471936.

The previous prime is 20555354022547. The next prime is 20555354022583. The reversal of 20555354022554 is 45522045355502.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16881703300225 + 3673650722329 = 4108735^2 + 1916677^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20555354022499 and 20555354022508.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395295269639 + ... + 395295269690.

Almost surely, 2^{20555354022554} is an apocalyptic number.

20555354022554 is a deficient number, since it is larger than the sum of its proper divisors (12649448629306).

20555354022554 is a wasteful number, since it uses less digits than its factorization.

20555354022554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790590539344.

The product of its (nonzero) digits is 6000000, while the sum is 47.

The spelling of 20555354022554 in words is "twenty trillion, five hundred fifty-five billion, three hundred fifty-four million, twenty-two thousand, five hundred fifty-four".