216329640355 has 8 divisors (see below), whose sum is σ = 273258493200. Its totient is φ = 163955095776.

The previous prime is 216329640341. The next prime is 216329640391. The reversal of 216329640355 is 553046923612.

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

It is a cyclic number.

It is not a de Polignac number, because 216329640355 - 2⁷ = 216329640227 is a prime.

It is a super-2 number, since 2×216329640355² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1138576960 + ... + 1138577149.

It is an arithmetic number, because the mean of its divisors is an integer number (34157311650).

Almost surely, 2^216329640355 is an apocalyptic number.

216329640355 is a deficient number, since it is larger than the sum of its proper divisors (56928852845).

216329640355 is a wasteful number, since it uses less digits than its factorization.

216329640355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277154133.

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 216329640355 in words is "two hundred sixteen billion, three hundred twenty-nine million, six hundred forty thousand, three hundred fifty-five".