10036445561 has 4 divisors (see below), whose sum is σ = 10037269092. Its totient is φ = 10035622032.

The previous prime is 10036445543. The next prime is 10036445569. The reversal of 10036445561 is 16554463001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16554463001 = 11057 ⋅1497193.

It can be written as a sum of positive squares in 2 ways, for example, as 4900000000 + 5136445561 = 70000^2 + 71669^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10036445561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10036445569) 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, 393206 + ... + 417951.

It is an arithmetic number, because the mean of its divisors is an integer number (2509317273).

Almost surely, 2^10036445561 is an apocalyptic number.

It is an amenable number.

10036445561 is a deficient number, since it is larger than the sum of its proper divisors (823531).

10036445561 is an equidigital number, since it uses as much as digits as its factorization.

10036445561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823530.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 10036445561 in words is "ten billion, thirty-six million, four hundred forty-five thousand, five hundred sixty-one".