216435715015 has 8 divisors (see below), whose sum is σ = 279701539488. Its totient is φ = 159829451040.

The previous prime is 216435715009. The next prime is 216435715087. The reversal of 216435715015 is 510517534612.

It is a happy number.

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

It is not a de Polignac number, because 216435715015 - 2²⁹ = 215898844103 is a prime.

It is a Duffinian number.

It is a congruent 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, 1664890051 + ... + 1664890180.

It is an arithmetic number, because the mean of its divisors is an integer number (34962692436).

Almost surely, 2^216435715015 is an apocalyptic number.

216435715015 is a deficient number, since it is larger than the sum of its proper divisors (63265824473).

216435715015 is a wasteful number, since it uses less digits than its factorization.

216435715015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3329780249.

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 216435715015 in words is "two hundred sixteen billion, four hundred thirty-five million, seven hundred fifteen thousand, fifteen".