1145680866 has 48 divisors (see below), whose sum is σ = 2710495008. Its totient is φ = 346852800.

The previous prime is 1145680859. The next prime is 1145680901. The reversal of 1145680866 is 6680865411.

1145680866 is a `hidden beast` number, since 1 + 1 + 4 + 568 + 0 + 86 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 291285 + ... + 295191.

It is an arithmetic number, because the mean of its divisors is an integer number (56468646).

Almost surely, 2^1145680866 is an apocalyptic number.

1145680866 is an abundant number, since it is smaller than the sum of its proper divisors (1564814142).

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

1145680866 is a wasteful number, since it uses less digits than its factorization.

1145680866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5407 (or 5404 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 1145680866 is about 33847.9078526281. The cubic root of 1145680866 is about 1046.3762811393.

The spelling of 1145680866 in words is "one billion, one hundred forty-five million, six hundred eighty thousand, eight hundred sixty-six".