216465534715 has 8 divisors (see below), whose sum is σ = 259790786928. Its totient is φ = 173150997600.

The previous prime is 216465534697. The next prime is 216465534721. The reversal of 216465534715 is 517435564612.

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

It is not a de Polignac number, because 216465534715 - 2¹⁵ = 216465501947 is a prime.

It is a Duffinian number.

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, 2634261 + ... + 2715190.

It is an arithmetic number, because the mean of its divisors is an integer number (32473848366).

Almost surely, 2^216465534715 is an apocalyptic number.

216465534715 is a deficient number, since it is larger than the sum of its proper divisors (43325252213).

216465534715 is an equidigital number, since it uses as much as digits as its factorization.

216465534715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5357549.

The product of its digits is 3024000, while the sum is 49.

The spelling of 216465534715 in words is "two hundred sixteen billion, four hundred sixty-five million, five hundred thirty-four thousand, seven hundred fifteen".