1115666344 has 48 divisors (see below), whose sum is σ = 2398460220. Its totient is φ = 484623360.

The previous prime is 1115666323. The next prime is 1115666351. The reversal of 1115666344 is 4436665111.

It can be written as a sum of positive squares in 6 ways, for example, as 48860100 + 1066806244 = 6990^2 + 32662^2 .

It is a super-2 number, since 2×1115666344² = 2489422782268652672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1287 + ... + 47254.

Almost surely, 2^1115666344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1115666344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1199230110).

1115666344 is an abundant number, since it is smaller than the sum of its proper divisors (1282793876).

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

1115666344 is a wasteful number, since it uses less digits than its factorization.

1115666344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48590 (or 48573 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 1115666344 is about 33401.5919381098. The cubic root of 1115666344 is about 1037.1576555493.

The spelling of 1115666344 in words is "one billion, one hundred fifteen million, six hundred sixty-six thousand, three hundred forty-four".