6499814655 has 8 divisors (see below), whose sum is σ = 10399703472. Its totient is φ = 3466567808.

The previous prime is 6499814647. The next prime is 6499814677. The reversal of 6499814655 is 5564189946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6499814655 - 2³ = 6499814647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6499814595 and 6499814604.

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, 216660474 + ... + 216660503.

It is an arithmetic number, because the mean of its divisors is an integer number (1299962934).

Almost surely, 2^6499814655 is an apocalyptic number.

6499814655 is a deficient number, since it is larger than the sum of its proper divisors (3899888817).

6499814655 is a wasteful number, since it uses less digits than its factorization.

6499814655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433320985.

The product of its digits is 9331200, while the sum is 57.

The square root of 6499814655 is about 80621.4280138971. The cubic root of 6499814655 is about 1866.2378397200.

The spelling of 6499814655 in words is "six billion, four hundred ninety-nine million, eight hundred fourteen thousand, six hundred fifty-five".