6677919612 has 480 divisors, whose sum is σ = 22585221120. Its totient is φ = 1674017280.

The previous prime is 6677919571. The next prime is 6677919667. The reversal of 6677919612 is 2169197766.

6677919612 is a `hidden beast` number, since 6 + 6 + 7 + 7 + 9 + 19 + 612 = 666.

It is a super-2 number, since 2×6677919612² = 89189220688668461088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 84530589 + ... + 84530667.

It is an arithmetic number, because the mean of its divisors is an integer number (47052544).

Almost surely, 2^6677919612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6677919612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11292610560).

6677919612 is an abundant number, since it is smaller than the sum of its proper divisors (15907301508).

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

6677919612 is a wasteful number, since it uses less digits than its factorization.

6677919612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 212 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 54.

The square root of 6677919612 is about 81718.5389737237. The cubic root of 6677919612 is about 1883.1304052079.

The spelling of 6677919612 in words is "six billion, six hundred seventy-seven million, nine hundred nineteen thousand, six hundred twelve".