1006561433459 has 8 divisors (see below), whose sum is σ = 1026933362688. Its totient is φ = 986346816840.

The previous prime is 1006561433453. The next prime is 1006561433477. The reversal of 1006561433459 is 9543341656001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1006561433459 - 2²⁰ = 1006560384883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1006561433453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39315227 + ... + 39340820.

It is an arithmetic number, because the mean of its divisors is an integer number (128366670336).

Almost surely, 2^{1006561433459} is an apocalyptic number.

1006561433459 is a deficient number, since it is larger than the sum of its proper divisors (20371929229).

1006561433459 is an equidigital number, since it uses as much as digits as its factorization.

1006561433459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78656305.

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 1006561433459 in words is "one trillion, six billion, five hundred sixty-one million, four hundred thirty-three thousand, four hundred fifty-nine".