115443554255421 has 64 divisors (see below), whose sum is σ = 193457258496000. Its totient is φ = 59706264252096.

The previous prime is 115443554255369. The next prime is 115443554255423. The reversal of 115443554255421 is 124552455344511.

It is not a de Polignac number, because 115443554255421 - 2¹⁴ = 115443554239037 is a prime.

It is a super-3 number, since 3×115443554255421³ (a number of 43 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115443554255423) 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 63 ways as a sum of consecutive naturals, for example, 16221 + ... + 15194978.

It is an arithmetic number, because the mean of its divisors is an integer number (3022769664000).

Almost surely, 2^{115443554255421} is an apocalyptic number.

It is an amenable number.

115443554255421 is a deficient number, since it is larger than the sum of its proper divisors (78013704240579).

115443554255421 is a wasteful number, since it uses less digits than its factorization.

115443554255421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15212078.

The product of its digits is 9600000, while the sum is 51.

The spelling of 115443554255421 in words is "one hundred fifteen trillion, four hundred forty-three billion, five hundred fifty-four million, two hundred fifty-five thousand, four hundred twenty-one".