2196043561 has 8 divisors (see below), whose sum is σ = 2357973504. Its totient is φ = 2037752640.

The previous prime is 2196043559. The next prime is 2196043607. The reversal of 2196043561 is 1653406912.

2196043561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2196043561 - 2¹ = 2196043559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2196043561.

It is not an unprimeable number, because it can be changed into a prime (2196043061) 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, 908505 + ... + 910918.

It is an arithmetic number, because the mean of its divisors is an integer number (294746688).

Almost surely, 2^2196043561 is an apocalyptic number.

It is an amenable number.

2196043561 is a deficient number, since it is larger than the sum of its proper divisors (161929943).

2196043561 is a wasteful number, since it uses less digits than its factorization.

2196043561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1819511.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 2196043561 is about 46861.9628376789. The cubic root of 2196043561 is about 1299.8113258727.

The spelling of 2196043561 in words is "two billion, one hundred ninety-six million, forty-three thousand, five hundred sixty-one".