4515216615 has 160 divisors (see below), whose sum is σ = 10068702336. Its totient is φ = 1884902400.

The previous prime is 4515216611. The next prime is 4515216623. The reversal of 4515216615 is 5166125154.

4515216615 is a `hidden beast` number, since 4 + 5 + 15 + 21 + 6 + 615 = 666.

It is not a de Polignac number, because 4515216615 - 2² = 4515216611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4515216615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4515216611) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 3721749 + ... + 3722961.

Almost surely, 2^4515216615 is an apocalyptic number.

4515216615 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4515216615 is an abundant number, since it is smaller than the sum of its proper divisors (5553485721).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4515216615 is a wasteful number, since it uses less digits than its factorization.

4515216615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351 (or 1342 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 4515216615 is about 67195.3615586671. The cubic root of 4515216615 is about 1652.8224255147.

The spelling of 4515216615 in words is "four billion, five hundred fifteen million, two hundred sixteen thousand, six hundred fifteen".