1000550005609 has 32 divisors (see below), whose sum is σ = 1313478835200. Its totient is φ = 738398514240.

The previous prime is 1000550005607. The next prime is 1000550005621. The reversal of 1000550005609 is 9065000550001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1000550005609 - 2¹ = 1000550005607 is a prime.

It is a super-2 number, since 2×1000550005609² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1000550005603) 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, 4976574 + ... + 5173720.

It is an arithmetic number, because the mean of its divisors is an integer number (41046213600).

Almost surely, 2^{1000550005609} is an apocalyptic number.

1000550005609 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1000550005609 is a deficient number, since it is larger than the sum of its proper divisors (312928829591).

1000550005609 is a wasteful number, since it uses less digits than its factorization.

1000550005609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200653.

The product of its (nonzero) digits is 6750, while the sum is 31.

The spelling of 1000550005609 in words is "one trillion, five hundred fifty million, five thousand, six hundred nine".