20854044504 has 48 divisors (see below), whose sum is σ = 56487805920. Its totient is φ = 6950351040.

The previous prime is 20854044493. The next prime is 20854044611. The reversal of 20854044504 is 40544045802.

20854044504 is a `hidden beast` number, since 20 + 8 + 540 + 44 + 50 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 621649 + ... + 654335.

It is an arithmetic number, because the mean of its divisors is an integer number (1176829290).

Almost surely, 2^20854044504 is an apocalyptic number.

20854044504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20854044504 is an abundant number, since it is smaller than the sum of its proper divisors (35633761416).

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

20854044504 is a wasteful number, since it uses less digits than its factorization.

20854044504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41560 (or 41553 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 36.

The spelling of 20854044504 in words is "twenty billion, eight hundred fifty-four million, forty-four thousand, five hundred four".