6163261261 has 4 divisors (see below), whose sum is σ = 6166158300. Its totient is φ = 6160364224.

The previous prime is 6163261253. The next prime is 6163261267. The reversal of 6163261261 is 1621623616.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3977698761 + 2185562500 = 63069^2 + 46750^2 .

It is a cyclic number.

It is not a de Polignac number, because 6163261261 - 2³ = 6163261253 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 (6163261267) 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, 1445326 + ... + 1449583.

It is an arithmetic number, because the mean of its divisors is an integer number (1541539575).

Almost surely, 2^6163261261 is an apocalyptic number.

It is an amenable number.

6163261261 is a deficient number, since it is larger than the sum of its proper divisors (2897039).

6163261261 is a wasteful number, since it uses less digits than its factorization.

6163261261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2897038.

The product of its digits is 15552, while the sum is 34.

The square root of 6163261261 is about 78506.4408886303. The cubic root of 6163261261 is about 1833.4547359349.

Adding to 6163261261 its reverse (1621623616), we get a palindrome (7784884877).

The spelling of 6163261261 in words is "six billion, one hundred sixty-three million, two hundred sixty-one thousand, two hundred sixty-one".