1105661251216 has 20 divisors (see below), whose sum is σ = 2142554695600. Its totient is φ = 552743910432.

The previous prime is 1105661251183. The next prime is 1105661251237. The reversal of 1105661251216 is 6121521665011.

It is a super-2 number, since 2×1105661251216² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5314446 + ... + 5518573.

It is an arithmetic number, because the mean of its divisors is an integer number (107127734780).

Almost surely, 2^{1105661251216} is an apocalyptic number.

1105661251216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1105661251216 is a deficient number, since it is larger than the sum of its proper divisors (1036893444384).

1105661251216 is a wasteful number, since it uses less digits than its factorization.

1105661251216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10839406 (or 10839400 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 37.

The spelling of 1105661251216 in words is "one trillion, one hundred five billion, six hundred sixty-one million, two hundred fifty-one thousand, two hundred sixteen".