4461159561 has 8 divisors (see below), whose sum is σ = 5955443520. Its totient is φ = 2970490992.

The previous prime is 4461159539. The next prime is 4461159569. The reversal of 4461159561 is 1659511644.

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

It is not a de Polignac number, because 4461159561 - 2⁷ = 4461159433 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4461159569) 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, 900966 + ... + 905903.

It is an arithmetic number, because the mean of its divisors is an integer number (744430440).

Almost surely, 2^4461159561 is an apocalyptic number.

It is an amenable number.

4461159561 is a deficient number, since it is larger than the sum of its proper divisors (1494283959).

4461159561 is a wasteful number, since it uses less digits than its factorization.

4461159561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807695.

The product of its digits is 129600, while the sum is 42.

The square root of 4461159561 is about 66791.9123921452. The cubic root of 4461159561 is about 1646.1999554574.

The spelling of 4461159561 in words is "four billion, four hundred sixty-one million, one hundred fifty-nine thousand, five hundred sixty-one".