4405654661 has 2 divisors, whose sum is σ = 4405654662. Its totient is φ = 4405654660.

The previous prime is 4405654607. The next prime is 4405654663. The reversal of 4405654661 is 1664565044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4383234436 + 22420225 = 66206^2 + 4735^2 .

It is a cyclic number.

It is not a de Polignac number, because 4405654661 - 2¹⁴ = 4405638277 is a prime.

It is a Sophie Germain prime.

Together with 4405654663, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4405654663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2202827330 + 2202827331.

It is an arithmetic number, because the mean of its divisors is an integer number (2202827331).

Almost surely, 2^4405654661 is an apocalyptic number.

It is an amenable number.

4405654661 is a deficient number, since it is larger than the sum of its proper divisors (1).

4405654661 is an equidigital number, since it uses as much as digits as its factorization.

4405654661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 41.

The square root of 4405654661 is about 66375.1057324958. The cubic root of 4405654661 is about 1639.3442079828.

The spelling of 4405654661 in words is "four billion, four hundred five million, six hundred fifty-four thousand, six hundred sixty-one".