20554205235040 has 96 divisors (see below), whose sum is σ = 50268840058080. Its totient is φ = 7932633698304.

The previous prime is 20554205235017. The next prime is 20554205235079. The reversal of 20554205235040 is 4053250245502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5103487 + ... + 8194753.

It is an arithmetic number, because the mean of its divisors is an integer number (523633750605).

Almost surely, 2^{20554205235040} is an apocalyptic number.

20554205235040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20554205235040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25134420029040).

20554205235040 is an abundant number, since it is smaller than the sum of its proper divisors (29714634823040).

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

20554205235040 is a wasteful number, since it uses less digits than its factorization.

20554205235040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3092744 (or 3092736 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 37.

The spelling of 20554205235040 in words is "twenty trillion, five hundred fifty-four billion, two hundred five million, two hundred thirty-five thousand, forty".