6699464816 has 20 divisors (see below), whose sum is σ = 14160232824. Its totient is φ = 3045211200.

The previous prime is 6699464803. The next prime is 6699464819. The reversal of 6699464816 is 6184649966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6699464819) 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, 19032395 + ... + 19032746.

Almost surely, 2^6699464816 is an apocalyptic number.

It is an amenable number.

6699464816 is an abundant number, since it is smaller than the sum of its proper divisors (7460768008).

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

6699464816 is a wasteful number, since it uses less digits than its factorization.

6699464816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38065160 (or 38065154 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 59.

The square root of 6699464816 is about 81850.2584968429. The cubic root of 6699464816 is about 1885.1534341212.

The spelling of 6699464816 in words is "six billion, six hundred ninety-nine million, four hundred sixty-four thousand, eight hundred sixteen".