10005561055509 has 8 divisors (see below), whose sum is σ = 13342056929472. Its totient is φ = 6669719609280.

The previous prime is 10005561055487. The next prime is 10005561055559. The reversal of 10005561055509 is 90555016550001.

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

It is not a de Polignac number, because 10005561055509 - 2⁸ = 10005561055253 is a prime.

It is a super-2 number, since 2×10005561055509² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10005561055559) 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, 163571257 + ... + 163632414.

It is an arithmetic number, because the mean of its divisors is an integer number (1667757116184).

Almost surely, 2^{10005561055509} is an apocalyptic number.

It is an amenable number.

10005561055509 is a deficient number, since it is larger than the sum of its proper divisors (3336495873963).

10005561055509 is a wasteful number, since it uses less digits than its factorization.

10005561055509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327213867.

The product of its (nonzero) digits is 168750, while the sum is 42.

The spelling of 10005561055509 in words is "ten trillion, five billion, five hundred sixty-one million, fifty-five thousand, five hundred nine".