1100605005555 has 32 divisors (see below), whose sum is σ = 2034059309568. Its totient is φ = 502236864000.

The previous prime is 1100605005499. The next prime is 1100605005557. The reversal of 1100605005555 is 5555005060011.

It is not a de Polignac number, because 1100605005555 - 2¹¹ = 1100605003507 is a prime.

It is a super-2 number, since 2×1100605005555² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1100605005557) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196183471 + ... + 196189080.

It is an arithmetic number, because the mean of its divisors is an integer number (63564353424).

Almost surely, 2^{1100605005555} is an apocalyptic number.

1100605005555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1100605005555 is a deficient number, since it is larger than the sum of its proper divisors (933454304013).

1100605005555 is a wasteful number, since it uses less digits than its factorization.

1100605005555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392372587.

The product of its (nonzero) digits is 18750, while the sum is 33.

The spelling of 1100605005555 in words is "one trillion, one hundred billion, six hundred five million, five thousand, five hundred fifty-five".