1155005110605 has 16 divisors (see below), whose sum is σ = 1858218171264. Its totient is φ = 612599394240.

The previous prime is 1155005110591. The next prime is 1155005110627. The reversal of 1155005110605 is 5060115005511.

It is not a de Polignac number, because 1155005110605 - 2¹¹ = 1155005108557 is a prime.

It is a congruent 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, 212705409 + ... + 212710838.

It is an arithmetic number, because the mean of its divisors is an integer number (116138635704).

Almost surely, 2^{1155005110605} is an apocalyptic number.

1155005110605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1155005110605 is a deficient number, since it is larger than the sum of its proper divisors (703213060659).

1155005110605 is a wasteful number, since it uses less digits than its factorization.

1155005110605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425416436.

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 1155005110605 in words is "one trillion, one hundred fifty-five billion, five million, one hundred ten thousand, six hundred five".