20352136435040 has 96 divisors (see below), whose sum is σ = 48511438145856. Its totient is φ = 8068144250880.

The previous prime is 20352136435003. The next prime is 20352136435049. The reversal of 20352136435040 is 4053463125302.

It is a junction number, because it is equal to n+sod(n) for n = 20352136434985 and 20352136435003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20352136435049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258161069 + ... + 258239891.

It is an arithmetic number, because the mean of its divisors is an integer number (505327480686).

Almost surely, 2^{20352136435040} is an apocalyptic number.

20352136435040 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 20352136435040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24255719072928).

20352136435040 is an abundant number, since it is smaller than the sum of its proper divisors (28159301710816).

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

20352136435040 is a wasteful number, since it uses less digits than its factorization.

20352136435040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93232 (or 93224 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 38.

The spelling of 20352136435040 in words is "twenty trillion, three hundred fifty-two billion, one hundred thirty-six million, four hundred thirty-five thousand, forty".