6566216602 has 16 divisors (see below), whose sum is σ = 10751940000. Its totient is φ = 2982637840.

The previous prime is 6566216599. The next prime is 6566216647. The reversal of 6566216602 is 2066126656.

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, 66577 + ... + 132532.

It is an arithmetic number, because the mean of its divisors is an integer number (671996250).

Almost surely, 2^6566216602 is an apocalyptic number.

6566216602 is a deficient number, since it is larger than the sum of its proper divisors (4185723398).

6566216602 is a wasteful number, since it uses less digits than its factorization.

6566216602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200621.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 6566216602 is about 81032.1948487143. The cubic root of 6566216602 is about 1872.5714670320.

The spelling of 6566216602 in words is "six billion, five hundred sixty-six million, two hundred sixteen thousand, six hundred two".