306643162202221 has 16 divisors (see below), whose sum is σ = 333943017408000. Its totient is φ = 279873609003648.

The previous prime is 306643162202213. The next prime is 306643162202233. The reversal of 306643162202221 is 122202261346603.

It is a cyclic number.

It is not a de Polignac number, because 306643162202221 - 2³ = 306643162202213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306643168202221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363569820 + ... + 364412266.

It is an arithmetic number, because the mean of its divisors is an integer number (20871438588000).

Almost surely, 2^{306643162202221} is an apocalyptic number.

It is an amenable number.

306643162202221 is a deficient number, since it is larger than the sum of its proper divisors (27299855205779).

306643162202221 is a wasteful number, since it uses less digits than its factorization.

306643162202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157148.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 306643162202221 in words is "three hundred six trillion, six hundred forty-three billion, one hundred sixty-two million, two hundred two thousand, two hundred twenty-one".