6675491856 has 80 divisors (see below), whose sum is σ = 18961072128. Its totient is φ = 2006928000.

The previous prime is 6675491833. The next prime is 6675491887. The reversal of 6675491856 is 6581945766.

It is a junction number, because it is equal to n+sod(n) for n = 6675491796 and 6675491805.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17281 + ... + 116831.

Almost surely, 2^6675491856 is an apocalyptic number.

6675491856 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6675491856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9480536064).

6675491856 is an abundant number, since it is smaller than the sum of its proper divisors (12285580272).

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

6675491856 is a wasteful number, since it uses less digits than its factorization.

6675491856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99700 (or 99694 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 57.

The square root of 6675491856 is about 81703.6832462283. The cubic root of 6675491856 is about 1882.9021736857.

The spelling of 6675491856 in words is "six billion, six hundred seventy-five million, four hundred ninety-one thousand, eight hundred fifty-six".