6681100145 has 8 divisors (see below), whose sum is σ = 8365899456. Its totient is φ = 5112493936.

The previous prime is 6681100141. The next prime is 6681100157. The reversal of 6681100145 is 5410011866.

6681100145 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6681100145 - 2² = 6681100141 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 29048147 + ... + 29048376.

It is an arithmetic number, because the mean of its divisors is an integer number (1045737432).

Almost surely, 2^6681100145 is an apocalyptic number.

It is an amenable number.

6681100145 is a deficient number, since it is larger than the sum of its proper divisors (1684799311).

6681100145 is a wasteful number, since it uses less digits than its factorization.

6681100145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58096551.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 6681100145 is about 81737.9969475641. The cubic root of 6681100145 is about 1883.4293210447.

The spelling of 6681100145 in words is "six billion, six hundred eighty-one million, one hundred thousand, one hundred forty-five".