216329545 has 8 divisors (see below), whose sum is σ = 263252160. Its totient is φ = 170625840.

The previous prime is 216329537. The next prime is 216329551. The reversal of 216329545 is 545923612.

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

It is not a de Polignac number, because 216329545 - 2³ = 216329537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304335 + ... + 305044.

It is an arithmetic number, because the mean of its divisors is an integer number (32906520).

Almost surely, 2^216329545 is an apocalyptic number.

It is an amenable number.

216329545 is a deficient number, since it is larger than the sum of its proper divisors (46922615).

216329545 is an equidigital number, since it uses as much as digits as its factorization.

216329545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609455.

The product of its digits is 64800, while the sum is 37.

The square root of 216329545 is about 14708.1455323232. The cubic root of 216329545 is about 600.3049792125.

The spelling of 216329545 in words is "two hundred sixteen million, three hundred twenty-nine thousand, five hundred forty-five".