6161478541 has 8 divisors (see below), whose sum is σ = 6208232184. Its totient is φ = 6114900480.

The previous prime is 6161478529. The next prime is 6161478571. The reversal of 6161478541 is 1458741616.

It can be written as a sum of positive squares in 4 ways, for example, as 1251673641 + 4909804900 = 35379^2 + 70070^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6161478541 - 2²⁹ = 5624607629 is a prime.

It is a super-2 number, since 2×6161478541² = 75927635622406977362, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6161478511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26985 + ... + 114241.

It is an arithmetic number, because the mean of its divisors is an integer number (776029023).

Almost surely, 2^6161478541 is an apocalyptic number.

It is an amenable number.

6161478541 is a deficient number, since it is larger than the sum of its proper divisors (46753643).

6161478541 is a wasteful number, since it uses less digits than its factorization.

6161478541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87791.

The product of its digits is 161280, while the sum is 43.

The square root of 6161478541 is about 78495.0860946085. The cubic root of 6161478541 is about 1833.2779436232.

The spelling of 6161478541 in words is "six billion, one hundred sixty-one million, four hundred seventy-eight thousand, five hundred forty-one".