216326516 has 12 divisors (see below), whose sum is σ = 432653088. Its totient is φ = 92711352.

The previous prime is 216326489. The next prime is 216326543. The reversal of 216326516 is 615623612.

216326516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (216326489) and next prime (216326543).

216326516 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3862946 + ... + 3863001.

It is an arithmetic number, because the mean of its divisors is an integer number (36054424).

Almost surely, 2^216326516 is an apocalyptic number.

It is an amenable number.

216326516 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

216326516 is a wasteful number, since it uses less digits than its factorization.

216326516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7725958 (or 7725956 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 216326516 is about 14708.0425618095. The cubic root of 216326516 is about 600.3021774188.

The spelling of 216326516 in words is "two hundred sixteen million, three hundred twenty-six thousand, five hundred sixteen".