6161211163121 has 24 divisors (see below), whose sum is σ = 7418483424000. Its totient is φ = 5096032540704.

The previous prime is 6161211163111. The next prime is 6161211163127. The reversal of 6161211163121 is 1213611121616.

It is not a de Polignac number, because 6161211163121 - 2⁶ = 6161211163057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6161211163127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1267070 + ... + 3732008.

It is an arithmetic number, because the mean of its divisors is an integer number (309103476000).

Almost surely, 2^{6161211163121} is an apocalyptic number.

It is an amenable number.

6161211163121 is a deficient number, since it is larger than the sum of its proper divisors (1257272260879).

6161211163121 is a wasteful number, since it uses less digits than its factorization.

6161211163121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466741 (or 2466734 counting only the distinct ones).

The product of its digits is 2592, while the sum is 32.

Adding to 6161211163121 its reverse (1213611121616), we get a palindrome (7374822284737).

The spelling of 6161211163121 in words is "six trillion, one hundred sixty-one billion, two hundred eleven million, one hundred sixty-three thousand, one hundred twenty-one".