6691110093 has 12 divisors (see below), whose sum is σ = 9665647420. Its totient is φ = 4460412096.

The previous prime is 6691110089. The next prime is 6691110199. The reversal of 6691110093 is 3900111966.

It can be written as a sum of positive squares in 2 ways, for example, as 3020931369 + 3670178724 = 54963^2 + 60582^2 .

It is not a de Polignac number, because 6691110093 - 2² = 6691110089 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6691110893) 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, 214473 + ... + 243681.

Almost surely, 2^6691110093 is an apocalyptic number.

It is an amenable number.

6691110093 is a deficient number, since it is larger than the sum of its proper divisors (2974537327).

6691110093 is a wasteful number, since it uses less digits than its factorization.

6691110093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54668 (or 54665 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 6691110093 is about 81799.2059435787. The cubic root of 6691110093 is about 1884.3694667032.

The spelling of 6691110093 in words is "six billion, six hundred ninety-one million, one hundred ten thousand, ninety-three".