115443202253520 has 320 divisors, whose sum is σ = 367295366592000. Its totient is φ = 29986475581440.

The previous prime is 115443202253513. The next prime is 115443202253521. The reversal of 115443202253520 is 25352202344511.

It is a super-3 number, since 3×115443202253520³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115443202253521) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 648129594 + ... + 648307686.

It is an arithmetic number, because the mean of its divisors is an integer number (1147798020600).

Almost surely, 2^{115443202253520} is an apocalyptic number.

115443202253520 is a gapful number since it is divisible by the number (10) 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 115443202253520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183647683296000).

115443202253520 is an abundant number, since it is smaller than the sum of its proper divisors (251852164338480).

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

115443202253520 is a wasteful number, since it uses less digits than its factorization.

115443202253520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178638 (or 178632 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 39.

Subtracting from 115443202253520 its reverse (25352202344511), we obtain a palindrome (90090999909009).

The spelling of 115443202253520 in words is "one hundred fifteen trillion, four hundred forty-three billion, two hundred two million, two hundred fifty-three thousand, five hundred twenty".