6161538671 has 16 divisors (see below), whose sum is σ = 6798570240. Its totient is φ = 5562406080.

The previous prime is 6161538661. The next prime is 6161538673. The reversal of 6161538671 is 1768351616.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6161538671 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 (6161538673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58475 + ... + 125468.

It is an arithmetic number, because the mean of its divisors is an integer number (424910640).

Almost surely, 2^6161538671 is an apocalyptic number.

6161538671 is a deficient number, since it is larger than the sum of its proper divisors (637031569).

6161538671 is a wasteful number, since it uses less digits than its factorization.

6161538671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184046.

The product of its digits is 181440, while the sum is 44.

The square root of 6161538671 is about 78495.4691112806. The cubic root of 6161538671 is about 1833.2839072699.

The spelling of 6161538671 in words is "six billion, one hundred sixty-one million, five hundred thirty-eight thousand, six hundred seventy-one".