347780816066 has 16 divisors (see below), whose sum is σ = 523081208160. Its totient is φ = 173420676000.

The previous prime is 347780816029. The next prime is 347780816087. The reversal of 347780816066 is 660618087743.

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, 2660510 + ... + 2788166.

It is an arithmetic number, because the mean of its divisors is an integer number (32692575510).

Almost surely, 2^347780816066 is an apocalyptic number.

347780816066 is a deficient number, since it is larger than the sum of its proper divisors (175300392094).

347780816066 is a wasteful number, since it uses less digits than its factorization.

347780816066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131329.

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 347780816066 in words is "three hundred forty-seven billion, seven hundred eighty million, eight hundred sixteen thousand, sixty-six".