6654671864 has 16 divisors (see below), whose sum is σ = 12479323920. Its totient is φ = 3326852160.

The previous prime is 6654671713. The next prime is 6654671869. The reversal of 6654671864 is 4681764566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6654671869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1757 + ... + 115379.

It is an arithmetic number, because the mean of its divisors is an integer number (779957745).

Almost surely, 2^6654671864 is an apocalyptic number.

It is an amenable number.

6654671864 is a deficient number, since it is larger than the sum of its proper divisors (5824652056).

6654671864 is a wasteful number, since it uses less digits than its factorization.

6654671864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120950 (or 120946 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 53.

The square root of 6654671864 is about 81576.1721582963. The cubic root of 6654671864 is about 1880.9426259786.

The spelling of 6654671864 in words is "six billion, six hundred fifty-four million, six hundred seventy-one thousand, eight hundred sixty-four".