1166027040 has 72 divisors (see below), whose sum is σ = 3979072188. Its totient is φ = 310940160.

The previous prime is 1166027039. The next prime is 1166027081. The reversal of 1166027040 is 407206611.

1166027040 is a `hidden beast` number, since 1 + 16 + 602 + 7 + 0 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1158993936 + 7033104 = 34044^2 + 2652^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×1166027040² = 2719238116022323200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1166026995 and 1166027013.

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, 403431 + ... + 406310.

Almost surely, 2^1166027040 is an apocalyptic number.

1166027040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1166027040 is an abundant number, since it is smaller than the sum of its proper divisors (2813045148).

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

1166027040 is a wasteful number, since it uses less digits than its factorization.

1166027040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809762 (or 809751 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1166027040 is about 34147.1380938432. The cubic root of 1166027040 is about 1052.5341781526.

The spelling of 1166027040 in words is "one billion, one hundred sixty-six million, twenty-seven thousand, forty".