113415385440 has 384 divisors, whose sum is σ = 424569600000. Its totient is φ = 24899567616.

The previous prime is 113415385417. The next prime is 113415385477. The reversal of 113415385440 is 44583514311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19387636 + ... + 19393484.

It is an arithmetic number, because the mean of its divisors is an integer number (1105650000).

Almost surely, 2^113415385440 is an apocalyptic number.

113415385440 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 113415385440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212284800000).

113415385440 is an abundant number, since it is smaller than the sum of its proper divisors (311154214560).

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

113415385440 is a wasteful number, since it uses less digits than its factorization.

113415385440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6102 (or 6094 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

Adding to 113415385440 its reverse (44583514311), we get a palindrome (157998899751).

The spelling of 113415385440 in words is "one hundred thirteen billion, four hundred fifteen million, three hundred eighty-five thousand, four hundred forty".