1145367061866 has 24 divisors (see below), whose sum is σ = 2494486821060. Its totient is φ = 379810838016.

The previous prime is 1145367061843. The next prime is 1145367061913. The reversal of 1145367061866 is 6681607635411.

It is a happy number.

1145367061866 is a `hidden beast` number, since 1 + 1 + 453 + 6 + 7 + 0 + 6 + 186 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1126525381641 + 18841680225 = 1061379^2 + 137265^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164844981 + ... + 164851928.

Almost surely, 2^{1145367061866} is an apocalyptic number.

1145367061866 is an abundant number, since it is smaller than the sum of its proper divisors (1349119759194).

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

1145367061866 is a wasteful number, since it uses less digits than its factorization.

1145367061866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329697110 (or 329697107 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 1145367061866 in words is "one trillion, one hundred forty-five billion, three hundred sixty-seven million, sixty-one thousand, eight hundred sixty-six".