6601278168 has 32 divisors (see below), whose sum is σ = 18336884400. Its totient is φ = 2200425984.

The previous prime is 6601278097. The next prime is 6601278181. The reversal of 6601278168 is 8618721066.

It is a happy number.

6601278168 is a `hidden beast` number, since 6 + 601 + 27 + 8 + 16 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15280521 + ... + 15280952.

Almost surely, 2^6601278168 is an apocalyptic number.

It is an amenable number.

6601278168 is an abundant number, since it is smaller than the sum of its proper divisors (11735606232).

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

6601278168 is a wasteful number, since it uses less digits than its factorization.

6601278168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30561488 (or 30561478 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 6601278168 is about 81248.2502457745. The cubic root of 6601278168 is about 1875.8985363752.

The spelling of 6601278168 in words is "six billion, six hundred one million, two hundred seventy-eight thousand, one hundred sixty-eight".