20554120314405 has 24 divisors (see below), whose sum is σ = 35634367398240. Its totient is φ = 10959974264160.

The previous prime is 20554120314389. The next prime is 20554120314421. The reversal of 20554120314405 is 50441302145502.

20554120314405 is a `hidden beast` number, since 2 + 0 + 5 + 5 + 4 + 1 + 203 + 1 + 440 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (20554120314389) and next prime (20554120314421).

It is not a de Polignac number, because 20554120314405 - 2⁴ = 20554120314389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20554120314405.

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 in 23 ways as a sum of consecutive naturals, for example, 46093075 + ... + 46536864.

It is an arithmetic number, because the mean of its divisors is an integer number (1484765308260).

Almost surely, 2^{20554120314405} is an apocalyptic number.

It is an amenable number.

20554120314405 is a deficient number, since it is larger than the sum of its proper divisors (15080247083835).

20554120314405 is a wasteful number, since it uses less digits than its factorization.

20554120314405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92634881 (or 92634878 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 20554120314405 its reverse (50441302145502), we get a palindrome (70995422459907).

The spelling of 20554120314405 in words is "twenty trillion, five hundred fifty-four billion, one hundred twenty million, three hundred fourteen thousand, four hundred five".