4161755861 has 8 divisors (see below), whose sum is σ = 4344943680. Its totient is φ = 3978754912.

The previous prime is 4161755849. The next prime is 4161755863. The reversal of 4161755861 is 1685571614.

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

It is not a de Polignac number, because 4161755861 - 2³⁰ = 3088014037 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 (4161755863) 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, 200 + ... + 91233.

It is an arithmetic number, because the mean of its divisors is an integer number (543117960).

Almost surely, 2^4161755861 is an apocalyptic number.

It is an amenable number.

4161755861 is a deficient number, since it is larger than the sum of its proper divisors (183187819).

4161755861 is a wasteful number, since it uses less digits than its factorization.

4161755861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93435.

The product of its digits is 201600, while the sum is 44.

The square root of 4161755861 is about 64511.6722849439. The cubic root of 4161755861 is about 1608.5165483878.

The spelling of 4161755861 in words is "four billion, one hundred sixty-one million, seven hundred fifty-five thousand, eight hundred sixty-one".