10605556009 has 4 divisors (see below), whose sum is σ = 10610993920. Its totient is φ = 10600118100.

The previous prime is 10605556007. The next prime is 10605556019. The reversal of 10605556009 is 90065550601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10605556009 - 2¹ = 10605556007 is a prime.

It is a super-2 number, since 2×10605556009² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10605556007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2716029 + ... + 2719930.

It is an arithmetic number, because the mean of its divisors is an integer number (2652748480).

Almost surely, 2^10605556009 is an apocalyptic number.

It is an amenable number.

10605556009 is a deficient number, since it is larger than the sum of its proper divisors (5437911).

10605556009 is an equidigital number, since it uses as much as digits as its factorization.

10605556009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5437910.

The product of its (nonzero) digits is 40500, while the sum is 37.

The spelling of 10605556009 in words is "ten billion, six hundred five million, five hundred fifty-six thousand, nine".