6806655400 has 24 divisors (see below), whose sum is σ = 15825474270. Its totient is φ = 2722662080.

The previous prime is 6806655389. The next prime is 6806655409. The reversal of 6806655400 is 45566086.

It can be written as a sum of positive squares in 3 ways, for example, as 4531174596 + 2275480804 = 67314^2 + 47702^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (6806655409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17016439 + ... + 17016838.

Almost surely, 2^6806655400 is an apocalyptic number.

It is an amenable number.

6806655400 is an abundant number, since it is smaller than the sum of its proper divisors (9018818870).

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

6806655400 is a wasteful number, since it uses less digits than its factorization.

6806655400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34033293 (or 34033284 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 6806655400 is about 82502.4569331120. The cubic root of 6806655400 is about 1895.1543560726.

The spelling of 6806655400 in words is "six billion, eight hundred six million, six hundred fifty-five thousand, four hundred".