306216421506112 has 56 divisors (see below), whose sum is σ = 666737369962776. Its totient is φ = 138664039907328.

The previous prime is 306216421506103. The next prime is 306216421506113. The reversal of 306216421506112 is 211605124612603.

It can be written as a sum of positive squares in 4 ways, for example, as 97562556645376 + 208653864860736 = 9877376^2 + 14444856^2 .

It is not an unprimeable number, because it can be changed into a prime (306216421506113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3472112353 + ... + 3472200544.

It is an arithmetic number, because the mean of its divisors is an integer number (11906024463621).

Almost surely, 2^{306216421506112} is an apocalyptic number.

306216421506112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

306216421506112 is an abundant number, since it is smaller than the sum of its proper divisors (360520948456664).

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

306216421506112 is a wasteful number, since it uses less digits than its factorization.

306216421506112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6944312975 (or 6944312965 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 306216421506112 in words is "three hundred six trillion, two hundred sixteen billion, four hundred twenty-one million, five hundred six thousand, one hundred twelve".