10556005601 has 4 divisors (see below), whose sum is σ = 10755175572. Its totient is φ = 10356835632.

The previous prime is 10556005589. The next prime is 10556005609. The reversal of 10556005601 is 10650065501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3224536225 + 7331469376 = 56785^2 + 85624^2 .

It is a cyclic number.

It is not a de Polignac number, because 10556005601 - 2²² = 10551811297 is a prime.

It is a super-2 number, since 2×10556005601² (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 (10556005609) 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, 99584906 + ... + 99585011.

It is an arithmetic number, because the mean of its divisors is an integer number (2688793893).

Almost surely, 2^10556005601 is an apocalyptic number.

It is an amenable number.

10556005601 is a deficient number, since it is larger than the sum of its proper divisors (199169971).

10556005601 is an equidigital number, since it uses as much as digits as its factorization.

10556005601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199169970.

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 10556005601 in words is "ten billion, five hundred fifty-six million, five thousand, six hundred one".