1155557027107 has 16 divisors (see below), whose sum is σ = 1403892145152. Its totient is φ = 928500048000.

The previous prime is 1155557027101. The next prime is 1155557027117. The reversal of 1155557027107 is 7017207555511.

It is not a de Polignac number, because 1155557027107 - 2³ = 1155557027099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1155557027101) 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 15 ways as a sum of consecutive naturals, for example, 19313883 + ... + 19373620.

It is an arithmetic number, because the mean of its divisors is an integer number (87743259072).

Almost surely, 2^{1155557027107} is an apocalyptic number.

1155557027107 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1155557027107 is a deficient number, since it is larger than the sum of its proper divisors (248335118045).

1155557027107 is a wasteful number, since it uses less digits than its factorization.

1155557027107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38687778.

The product of its (nonzero) digits is 428750, while the sum is 46.

The spelling of 1155557027107 in words is "one trillion, one hundred fifty-five billion, five hundred fifty-seven million, twenty-seven thousand, one hundred seven".