1100115543345 has 64 divisors (see below), whose sum is σ = 2166550364160. Its totient is φ = 464188370688.

The previous prime is 1100115543341. The next prime is 1100115543361. The reversal of 1100115543345 is 5433455110011.

It is a happy number.

It is not a de Polignac number, because 1100115543345 - 2² = 1100115543341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1100115543341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24464272 + ... + 24509198.

It is an arithmetic number, because the mean of its divisors is an integer number (33852349440).

Almost surely, 2^{1100115543345} is an apocalyptic number.

1100115543345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1100115543345 is a deficient number, since it is larger than the sum of its proper divisors (1066434820815).

1100115543345 is a wasteful number, since it uses less digits than its factorization.

1100115543345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62894.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 1100115543345 in words is "one trillion, one hundred billion, one hundred fifteen million, five hundred forty-three thousand, three hundred forty-five".