6678016725 has 36 divisors (see below), whose sum is σ = 11088127616. Its totient is φ = 3546457440.

The previous prime is 6678016693. The next prime is 6678016747. The reversal of 6678016725 is 5276108766.

It is not a de Polignac number, because 6678016725 - 2⁵ = 6678016693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11001372 + ... + 11001978.

Almost surely, 2^6678016725 is an apocalyptic number.

It is an amenable number.

6678016725 is a deficient number, since it is larger than the sum of its proper divisors (4410110891).

6678016725 is an equidigital number, since it uses as much as digits as its factorization.

6678016725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386 (or 998 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 48.

The square root of 6678016725 is about 81719.1331635377. The cubic root of 6678016725 is about 1883.1395335776.

The spelling of 6678016725 in words is "six billion, six hundred seventy-eight million, sixteen thousand, seven hundred twenty-five".