20554445502 has 24 divisors (see below), whose sum is σ = 44537314536. Its totient is φ = 6851069136.

The previous prime is 20554445501. The next prime is 20554445519.

20554445502 is a `hidden beast` number, since 20 + 5 + 544 + 45 + 50 + 2 = 666.

20554445502 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20554445501) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 483553 + ... + 524339.

It is an arithmetic number, because the mean of its divisors is an integer number (1855721439).

Almost surely, 2^20554445502 is an apocalyptic number.

20554445502 is an abundant number, since it is smaller than the sum of its proper divisors (23982869034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20554445502 is a wasteful number, since it uses less digits than its factorization.

20554445502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68792 (or 68789 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 36.

The spelling of 20554445502 in words is "twenty billion, five hundred fifty-four million, four hundred forty-five thousand, five hundred two".