115321454043440 has 80 divisors (see below), whose sum is σ = 277186216425888. Its totient is φ = 44591330746368.

The previous prime is 115321454043407. The next prime is 115321454043449. The reversal of 115321454043440 is 44340454123511.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (115321454043449) 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, 172468787 + ... + 173136146.

Almost surely, 2^{115321454043440} is an apocalyptic number.

115321454043440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115321454043440 is an abundant number, since it is smaller than the sum of its proper divisors (161864762382448).

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

115321454043440 is a wasteful number, since it uses less digits than its factorization.

115321454043440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345605086 (or 345605080 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 41.

The spelling of 115321454043440 in words is "one hundred fifteen trillion, three hundred twenty-one billion, four hundred fifty-four million, forty-three thousand, four hundred forty".