115555555545 has 16 divisors (see below), whose sum is σ = 184906297152. Its totient is φ = 61623826880.

The previous prime is 115555555513. The next prime is 115555555567. The reversal of 115555555545 is 545555555511.

It is not a de Polignac number, because 115555555545 - 2⁵ = 115555555513 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195567 + ... + 518996.

It is an arithmetic number, because the mean of its divisors is an integer number (11556643572).

Almost surely, 2^115555555545 is an apocalyptic number.

115555555545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115555555545 is a deficient number, since it is larger than the sum of its proper divisors (69350741607).

115555555545 is a wasteful number, since it uses less digits than its factorization.

115555555545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725352.

The product of its digits is 7812500, while the sum is 51.

The spelling of 115555555545 in words is "one hundred fifteen billion, five hundred fifty-five million, five hundred fifty-five thousand, five hundred forty-five".