6210210161 has 4 divisors (see below), whose sum is σ = 6226859892. Its totient is φ = 6193560432.

The previous prime is 6210210107. The next prime is 6210210163. The reversal of 6210210161 is 1610120126.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1610120126 = 2 ⋅805060063.

It can be written as a sum of positive squares in 2 ways, for example, as 1782106225 + 4428103936 = 42215^2 + 66544^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6210210161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6210210163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8324306 + ... + 8325051.

It is an arithmetic number, because the mean of its divisors is an integer number (1556714973).

Almost surely, 2^6210210161 is an apocalyptic number.

It is an amenable number.

6210210161 is a deficient number, since it is larger than the sum of its proper divisors (16649731).

6210210161 is a wasteful number, since it uses less digits than its factorization.

6210210161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16649730.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 6210210161 is about 78804.8866568565. The cubic root of 6210210161 is about 1838.0984372916.

Adding to 6210210161 its reverse (1610120126), we get a palindrome (7820330287).

The spelling of 6210210161 in words is "six billion, two hundred ten million, two hundred ten thousand, one hundred sixty-one".