1001366466489 has 15 divisors (see below), whose sum is σ = 1495881878997. Its totient is φ = 667571640228.

The previous prime is 1001366466431. The next prime is 1001366466491. The reversal of 1001366466489 is 9846646631001.

The square root of 1001366466489 is 1000683.

It is a perfect power (a square), and thus also a powerful number.

1001366466489 is a `hidden beast` number, since 1 + 0 + 0 + 136 + 6 + 466 + 48 + 9 = 666.

It is not a de Polignac number, because 1001366466489 - 2⁷ = 1001366466361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1001366466409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 8950554 + ... + 9061740.

Almost surely, 2^{1001366466489} is an apocalyptic number.

1001366466489 is the 1000683-rd square number.

1001366466489 is the 500342-nd centered octagonal number.

It is an amenable number.

1001366466489 is a deficient number, since it is larger than the sum of its proper divisors (494515412508).

1001366466489 is an frugal number, since it uses more digits than its factorization.

1001366466489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222386 (or 111190 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 1001366466489 in words is "one trillion, one billion, three hundred sixty-six million, four hundred sixty-six thousand, four hundred eighty-nine".