216307407325 has 6 divisors (see below), whose sum is σ = 268221185114. Its totient is φ = 173045925840.

The previous prime is 216307407311. The next prime is 216307407403. The reversal of 216307407325 is 523704703612.

It can be written as a sum of positive squares in 3 ways, for example, as 236759769 + 216070647556 = 15387^2 + 464834^2 .

It is not a de Polignac number, because 216307407325 - 2⁵ = 216307407293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4326148122 + ... + 4326148171.

Almost surely, 2^216307407325 is an apocalyptic number.

216307407325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

216307407325 is a deficient number, since it is larger than the sum of its proper divisors (51913777789).

216307407325 is an equidigital number, since it uses as much as digits as its factorization.

216307407325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8652296303 (or 8652296298 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 40.

The spelling of 216307407325 in words is "two hundred sixteen billion, three hundred seven million, four hundred seven thousand, three hundred twenty-five".