1100115565616 has 40 divisors (see below), whose sum is σ = 2208570599280. Its totient is φ = 530223757056.

The previous prime is 1100115565613. The next prime is 1100115565663. The reversal of 1100115565616 is 6165655110011.

It is a happy number.

It is a super-2 number, since 2×1100115565616² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1100115565616.

It is not an unprimeable number, because it can be changed into a prime (1100115565613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1649450 + ... + 2218313.

It is an arithmetic number, because the mean of its divisors is an integer number (55214264982).

Almost surely, 2^{1100115565616} is an apocalyptic number.

1100115565616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1100115565616 is an abundant number, since it is smaller than the sum of its proper divisors (1108455033664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1100115565616 is a wasteful number, since it uses less digits than its factorization.

1100115565616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3868413 (or 3868407 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 38.

The spelling of 1100115565616 in words is "one trillion, one hundred billion, one hundred fifteen million, five hundred sixty-five thousand, six hundred sixteen".