6666514656 has 48 divisors (see below), whose sum is σ = 17531159184. Its totient is φ = 2218164224.

The previous prime is 6666514633. The next prime is 6666514727. The reversal of 6666514656 is 6564156666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 6666514599 and 6666514608.

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, 8865 + ... + 115808.

It is an arithmetic number, because the mean of its divisors is an integer number (365232483).

Almost surely, 2^6666514656 is an apocalyptic number.

It is an amenable number.

6666514656 is an abundant number, since it is smaller than the sum of its proper divisors (10864644528).

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

6666514656 is a wasteful number, since it uses less digits than its factorization.

6666514656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125243 (or 125235 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 51.

The square root of 6666514656 is about 81648.7272160442. The cubic root of 6666514656 is about 1882.0577529019.

The spelling of 6666514656 in words is "six billion, six hundred sixty-six million, five hundred fourteen thousand, six hundred fifty-six".