20554010434055 has 96 divisors (see below), whose sum is σ = 31454969448960. Its totient is φ = 12808518024960.

The previous prime is 20554010434031. The next prime is 20554010434063. The reversal of 20554010434055 is 55043401045502.

It is not a de Polignac number, because 20554010434055 - 2²⁰ = 20554009385479 is a prime.

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 in 95 ways as a sum of consecutive naturals, for example, 11388284 + ... + 13069086.

It is an arithmetic number, because the mean of its divisors is an integer number (327655931760).

Almost surely, 2^{20554010434055} is an apocalyptic number.

20554010434055 is a deficient number, since it is larger than the sum of its proper divisors (10900959014905).

20554010434055 is a wasteful number, since it uses less digits than its factorization.

20554010434055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680949 (or 1680942 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 38.

Adding to 20554010434055 its reverse (55043401045502), we get a palindrome (75597411479557).

The spelling of 20554010434055 in words is "twenty trillion, five hundred fifty-four billion, ten million, four hundred thirty-four thousand, fifty-five".