115521453502040 has 32 divisors (see below), whose sum is σ = 265967997601680. Its totient is φ = 45133963228032.

The previous prime is 115521453502031. The next prime is 115521453502043. The reversal of 115521453502040 is 40205354125511.

It is a junction number, because it is equal to n+sod(n) for n = 115521453501985 and 115521453502003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115521453502043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33581816159 + ... + 33581819598.

Almost surely, 2^{115521453502040} is an apocalyptic number.

115521453502040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115521453502040 is an abundant number, since it is smaller than the sum of its proper divisors (150446544099640).

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

115521453502040 is a wasteful number, since it uses less digits than its factorization.

115521453502040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67163635811 (or 67163635807 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 115521453502040 in words is "one hundred fifteen trillion, five hundred twenty-one billion, four hundred fifty-three million, five hundred two thousand, forty".