6106738221 has 12 divisors (see below), whose sum is σ = 8822694972. Its totient is φ = 4070304576.

The previous prime is 6106738199. The next prime is 6106738259. The reversal of 6106738221 is 1228376016.

6106738221 is a `hidden beast` number, since 610 + 6 + 7 + 38 + 2 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4243089321 + 1863648900 = 65139^2 + 43170^2 .

It is a de Polignac number, because none of the positive numbers 2^k-6106738221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6106738021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24286 + ... + 113151.

It is an arithmetic number, because the mean of its divisors is an integer number (735224581).

Almost surely, 2^6106738221 is an apocalyptic number.

It is an amenable number.

6106738221 is a deficient number, since it is larger than the sum of its proper divisors (2715956751).

6106738221 is a wasteful number, since it uses less digits than its factorization.

6106738221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142380 (or 142377 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 6106738221 is about 78145.6218927203. The cubic root of 6106738221 is about 1827.8326657306.

The spelling of 6106738221 in words is "six billion, one hundred six million, seven hundred thirty-eight thousand, two hundred twenty-one".