6606944280 has 64 divisors (see below), whose sum is σ = 22023151200. Its totient is φ = 1761851520.

The previous prime is 6606944251. The next prime is 6606944287. The reversal of 6606944280 is 824496066.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6606944287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3057691 + ... + 3059850.

Almost surely, 2^6606944280 is an apocalyptic number.

6606944280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6606944280 is an abundant number, since it is smaller than the sum of its proper divisors (15416206920).

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

6606944280 is a wasteful number, since it uses less digits than its factorization.

6606944280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6117561 (or 6117551 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 6606944280 is about 81283.1118990901. Note that the first 3 decimals coincide. The cubic root of 6606944280 is about 1876.4350997138.

The spelling of 6606944280 in words is "six billion, six hundred six million, nine hundred forty-four thousand, two hundred eighty".