214406941803561 has 12 divisors (see below), whose sum is σ = 333521909472388. Its totient is φ = 131942733417504.

The previous prime is 214406941803557. The next prime is 214406941803569. The reversal of 214406941803561 is 165308149604412.

214406941803561 is a `hidden beast` number, since 2 + 1 + 4 + 4 + 0 + 69 + 4 + 18 + 0 + 3 + 561 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18842379689961 + 195564562113600 = 4340781^2 + 13984440^2 .

It is not a de Polignac number, because 214406941803561 - 2² = 214406941803557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 214406941803498 and 214406941803507.

It is not an unprimeable number, because it can be changed into a prime (214406941803569) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 916268981950 + ... + 916268982183.

Almost surely, 2^{214406941803561} is an apocalyptic number.

It is an amenable number.

214406941803561 is a deficient number, since it is larger than the sum of its proper divisors (119114967668827).

214406941803561 is a wasteful number, since it uses less digits than its factorization.

214406941803561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832537964152 (or 1832537964149 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 214406941803561 in words is "two hundred fourteen trillion, four hundred six billion, nine hundred forty-one million, eight hundred three thousand, five hundred sixty-one".