6326123661 has 24 divisors (see below), whose sum is σ = 10735242336. Its totient is φ = 3539089440.

The previous prime is 6326123647. The next prime is 6326123677. The reversal of 6326123661 is 1663216236.

6326123661 is a `hidden beast` number, since 6 + 3 + 2 + 612 + 36 + 6 + 1 = 666.

6326123661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6326123661 - 2¹⁵ = 6326090893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6326123621) 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 23 ways as a sum of consecutive naturals, for example, 2456415 + ... + 2458988.

It is an arithmetic number, because the mean of its divisors is an integer number (447301764).

Almost surely, 2^6326123661 is an apocalyptic number.

It is an amenable number.

6326123661 is a deficient number, since it is larger than the sum of its proper divisors (4409118675).

6326123661 is a wasteful number, since it uses less digits than its factorization.

6326123661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4915433 (or 4915430 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 6326123661 is about 79536.9326853884. The cubic root of 6326123661 is about 1849.4640435276.

Adding to 6326123661 its reverse (1663216236), we get a palindrome (7989339897).

The spelling of 6326123661 in words is "six billion, three hundred twenty-six million, one hundred twenty-three thousand, six hundred sixty-one".