6161196321 has 96 divisors (see below), whose sum is σ = 11104224768. Its totient is φ = 3211591680.

The previous prime is 6161196319. The next prime is 6161196331. The reversal of 6161196321 is 1236911616.

6161196321 is a `hidden beast` number, since 6 + 1 + 6 + 1 + 19 + 632 + 1 = 666.

It is not a de Polignac number, because 6161196321 - 2¹ = 6161196319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6161196331) 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 95 ways as a sum of consecutive naturals, for example, 8474460 + ... + 8475186.

It is an arithmetic number, because the mean of its divisors is an integer number (115669008).

Almost surely, 2^6161196321 is an apocalyptic number.

It is an amenable number.

6161196321 is a deficient number, since it is larger than the sum of its proper divisors (4943028447).

6161196321 is a wasteful number, since it uses less digits than its factorization.

6161196321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991 (or 988 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 6161196321 is about 78493.2883818738. The cubic root of 6161196321 is about 1833.2499527442.

The spelling of 6161196321 in words is "six billion, one hundred sixty-one million, one hundred ninety-six thousand, three hundred twenty-one".