6606261138 has 32 divisors (see below), whose sum is σ = 13647186432. Its totient is φ = 2129731200.

The previous prime is 6606261131. The next prime is 6606261139. The reversal of 6606261138 is 8311626066.

It is a junction number, because it is equal to n+sod(n) for n = 6606261096 and 6606261105.

It is not an unprimeable number, because it can be changed into a prime (6606261131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315928 + ... + 336188.

It is an arithmetic number, because the mean of its divisors is an integer number (426474576).

Almost surely, 2^6606261138 is an apocalyptic number.

6606261138 is an abundant number, since it is smaller than the sum of its proper divisors (7040925294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6606261138 is a wasteful number, since it uses less digits than its factorization.

6606261138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22050.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 6606261138 is about 81278.9095522326. The cubic root of 6606261138 is about 1876.3704245399.

The spelling of 6606261138 in words is "six billion, six hundred six million, two hundred sixty-one thousand, one hundred thirty-eight".