6678650881 has 16 divisors (see below), whose sum is σ = 7907476480. Its totient is φ = 5519845440.

The previous prime is 6678650873. The next prime is 6678650899. The reversal of 6678650881 is 1880568766.

It is a cyclic number.

It is not a de Polignac number, because 6678650881 - 2³ = 6678650873 is a prime.

It is a super-2 number, since 2×6678650881² = 89208755180564152322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6678650801) 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, 4555 + ... + 115663.

It is an arithmetic number, because the mean of its divisors is an integer number (494217280).

Almost surely, 2^6678650881 is an apocalyptic number.

It is an amenable number.

6678650881 is a deficient number, since it is larger than the sum of its proper divisors (1228825599).

6678650881 is a wasteful number, since it uses less digits than its factorization.

6678650881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111424.

The product of its (nonzero) digits is 3870720, while the sum is 55.

The square root of 6678650881 is about 81723.0131664270. The cubic root of 6678650881 is about 1883.1991404181.

The spelling of 6678650881 in words is "six billion, six hundred seventy-eight million, six hundred fifty thousand, eight hundred eighty-one".