1166654240 has 96 divisors (see below), whose sum is σ = 2932660080. Its totient is φ = 437059584.

The previous prime is 1166654239. The next prime is 1166654243. The reversal of 1166654240 is 424566611.

It can be written as a sum of positive squares in 8 ways, for example, as 613651984 + 553002256 = 24772^2 + 23516^2 .

It is a super-2 number, since 2×1166654240² = 2722164231419955200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1166654240.

It is not an unprimeable number, because it can be changed into a prime (1166654243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 621944 + ... + 623816.

Almost surely, 2^1166654240 is an apocalyptic number.

1166654240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1166654240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1466330040).

1166654240 is an abundant number, since it is smaller than the sum of its proper divisors (1766005840).

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

1166654240 is a wasteful number, since it uses less digits than its factorization.

1166654240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134 (or 2126 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 1166654240 is about 34156.3206449407. The cubic root of 1166654240 is about 1052.7228619154.

The spelling of 1166654240 in words is "one billion, one hundred sixty-six million, six hundred fifty-four thousand, two hundred forty".