1000563661799 has 32 divisors (see below), whose sum is σ = 1104925350144. Its totient is φ = 900447736320.

The previous prime is 1000563661739. The next prime is 1000563661807. The reversal of 1000563661799 is 9971663650001.

It is a cyclic number.

It is not a de Polignac number, because 1000563661799 - 2²⁴ = 1000546884583 is a prime.

It is a super-2 number, since 2×1000563661799² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1000563661799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000563661739) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34200872 + ... + 34230114.

It is an arithmetic number, because the mean of its divisors is an integer number (34528917192).

Almost surely, 2^{1000563661799} is an apocalyptic number.

1000563661799 is a deficient number, since it is larger than the sum of its proper divisors (104361688345).

1000563661799 is a wasteful number, since it uses less digits than its factorization.

1000563661799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29727.

The product of its (nonzero) digits is 1837080, while the sum is 53.

The spelling of 1000563661799 in words is "one trillion, five hundred sixty-three million, six hundred sixty-one thousand, seven hundred ninety-nine".