6681100146 has 64 divisors (see below), whose sum is σ = 15726425088. Its totient is φ = 1852538688.

The previous prime is 6681100141. The next prime is 6681100157. The reversal of 6681100146 is 6410011866.

It is not an unprimeable number, because it can be changed into a prime (6681100141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 271761 + ... + 295323.

It is an arithmetic number, because the mean of its divisors is an integer number (245725392).

Almost surely, 2^6681100146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6681100146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7863212544).

6681100146 is an abundant number, since it is smaller than the sum of its proper divisors (9045324942).

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

6681100146 is a wasteful number, since it uses less digits than its factorization.

6681100146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23775.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 6681100146 is about 81737.9969536812. The cubic root of 6681100146 is about 1883.4293211386.

The spelling of 6681100146 in words is "six billion, six hundred eighty-one million, one hundred thousand, one hundred forty-six".