6161355331 has 4 divisors (see below), whose sum is σ = 6171642000. Its totient is φ = 6151068664.

The previous prime is 6161355323. The next prime is 6161355337. The reversal of 6161355331 is 1335531616.

6161355331 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6161355331 - 2³ = 6161355323 is a prime.

It is a super-2 number, since 2×6161355331² = 75924599029684239122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6161355337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5142436 + ... + 5143633.

It is an arithmetic number, because the mean of its divisors is an integer number (1542910500).

Almost surely, 2^6161355331 is an apocalyptic number.

6161355331 is a deficient number, since it is larger than the sum of its proper divisors (10286669).

6161355331 is a wasteful number, since it uses less digits than its factorization.

6161355331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10286668.

The product of its digits is 24300, while the sum is 34.

The square root of 6161355331 is about 78494.3012644867. The cubic root of 6161355331 is about 1833.2657236298.

Adding to 6161355331 its reverse (1335531616), we get a palindrome (7496886947).

The spelling of 6161355331 in words is "six billion, one hundred sixty-one million, three hundred fifty-five thousand, three hundred thirty-one".