216364630 has 8 divisors (see below), whose sum is σ = 389456352. Its totient is φ = 86545848.

The previous prime is 216364591. The next prime is 216364669. The reversal of 216364630 is 36463612.

It is an interprime number because it is at equal distance from previous prime (216364591) and next prime (216364669).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 216364592 and 216364601.

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, 10818222 + ... + 10818241.

It is an arithmetic number, because the mean of its divisors is an integer number (48682044).

Almost surely, 2^216364630 is an apocalyptic number.

216364630 is a deficient number, since it is larger than the sum of its proper divisors (173091722).

216364630 is a wasteful number, since it uses less digits than its factorization.

216364630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21636470.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 216364630 is about 14709.3381904150. The cubic root of 216364630 is about 600.3374305691.

The spelling of 216364630 in words is "two hundred sixteen million, three hundred sixty-four thousand, six hundred thirty".