306166220516 has 24 divisors (see below), whose sum is σ = 577023626424. Its totient is φ = 141303064320.

The previous prime is 306166220497. The next prime is 306166220531. The reversal of 306166220516 is 615022661603.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7613260516 + 298552960000 = 87254^2 + 546400^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 306166220516.

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, 2067776 + ... + 2210888.

It is an arithmetic number, because the mean of its divisors is an integer number (24042651101).

Almost surely, 2^306166220516 is an apocalyptic number.

It is an amenable number.

306166220516 is a deficient number, since it is larger than the sum of its proper divisors (270857405908).

306166220516 is a wasteful number, since it uses less digits than its factorization.

306166220516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184271 (or 184269 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 306166220516 in words is "three hundred six billion, one hundred sixty-six million, two hundred twenty thousand, five hundred sixteen".