6674563980 has 144 divisors (see below), whose sum is σ = 23200579584. Its totient is φ = 1521521280.

The previous prime is 6674563949. The next prime is 6674563997. The reversal of 6674563980 is 893654766.

6674563980 is a `hidden beast` number, since 6 + 6 + 74 + 563 + 9 + 8 + 0 = 666.

It is a super-2 number, since 2×6674563980² = 89099608646226880800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 475665 + ... + 489495.

It is an arithmetic number, because the mean of its divisors is an integer number (161115136).

Almost surely, 2^6674563980 is an apocalyptic number.

6674563980 is a gapful number since it is divisible by the number (60) 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 6674563980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11600289792).

6674563980 is an abundant number, since it is smaller than the sum of its proper divisors (16526015604).

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

6674563980 is a wasteful number, since it uses less digits than its factorization.

6674563980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14236 (or 14231 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The square root of 6674563980 is about 81698.0047491981. The cubic root of 6674563980 is about 1882.8149301422.

The spelling of 6674563980 in words is "six billion, six hundred seventy-four million, five hundred sixty-three thousand, nine hundred eighty".