6655676288978 has 8 divisors (see below), whose sum is σ = 10086437262972. Its totient is φ = 3293530534656.

The previous prime is 6655676288957. The next prime is 6655676288993. The reversal of 6655676288978 is 8798826765566.

It can be written as a sum of positive squares in 2 ways, for example, as 6170072185369 + 485604103609 = 2483963^2 + 696853^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6655676288896 and 6655676288905.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17153804675 + ... + 17153805062.

Almost surely, 2^{6655676288978} is an apocalyptic number.

6655676288978 is a deficient number, since it is larger than the sum of its proper divisors (3430760973994).

6655676288978 is a wasteful number, since it uses less digits than its factorization.

6655676288978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34307609836.

The product of its digits is 14631321600, while the sum is 83.

The spelling of 6655676288978 in words is "six trillion, six hundred fifty-five billion, six hundred seventy-six million, two hundred eighty-eight thousand, nine hundred seventy-eight".