4406661461 has 4 divisors (see below), whose sum is σ = 4409658624. Its totient is φ = 4403664300.

The previous prime is 4406661437. The next prime is 4406661473. The reversal of 4406661461 is 1641666044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4406661461 - 2¹⁴ = 4406645077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4406661401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1496375 + ... + 1499316.

It is an arithmetic number, because the mean of its divisors is an integer number (1102414656).

Almost surely, 2^4406661461 is an apocalyptic number.

It is an amenable number.

4406661461 is a deficient number, since it is larger than the sum of its proper divisors (2997163).

4406661461 is a wasteful number, since it uses less digits than its factorization.

4406661461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2997162.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 4406661461 is about 66382.6894679630. The cubic root of 4406661461 is about 1639.4690752398.

The spelling of 4406661461 in words is "four billion, four hundred six million, six hundred sixty-one thousand, four hundred sixty-one".