6655698280 has 128 divisors (see below), whose sum is σ = 18766080000. Its totient is φ = 2063888640.

The previous prime is 6655698263. The next prime is 6655698299. The reversal of 6655698280 is 828965566.

It is a Harshad number since it is a multiple of its sum of digits (55).

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 31 ways as a sum of consecutive naturals, for example, 607491 + ... + 618349.

It is an arithmetic number, because the mean of its divisors is an integer number (146610000).

Almost surely, 2^6655698280 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 6655698280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9383040000).

6655698280 is an abundant number, since it is smaller than the sum of its proper divisors (12110381720).

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

6655698280 is a wasteful number, since it uses less digits than its factorization.

6655698280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11087 (or 11083 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 55.

The square root of 6655698280 is about 81582.4630665194. The cubic root of 6655698280 is about 1881.0393264818.

It can be divided in two parts, 66556 and 98280, that added together give a square (164836 = 406²).

The spelling of 6655698280 in words is "six billion, six hundred fifty-five million, six hundred ninety-eight thousand, two hundred eighty".