20853782035100 has 72 divisors (see below), whose sum is σ = 51779022597120. Its totient is φ = 7141346032320.

The previous prime is 20853782035081. The next prime is 20853782035103. The reversal of 20853782035100 is 153028735802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20853782035103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17166644 + ... + 18341243.

Almost surely, 2^{20853782035100} is an apocalyptic number.

20853782035100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20853782035100 is an abundant number, since it is smaller than the sum of its proper divisors (30925240562020).

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

20853782035100 is a wasteful number, since it uses less digits than its factorization.

20853782035100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35508747 (or 35508740 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 20853782035100 in words is "twenty trillion, eight hundred fifty-three billion, seven hundred eighty-two million, thirty-five thousand, one hundred".