2160215815 has 8 divisors (see below), whose sum is σ = 2609427168. Its totient is φ = 1716727200.

The previous prime is 2160215767. The next prime is 2160215843. The reversal of 2160215815 is 5185120612.

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

It is not a de Polignac number, because 2160215815 - 2⁹ = 2160215303 is a prime.

It is a super-2 number, since 2×2160215815² = 9333064734752228450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1429852 + ... + 1431361.

It is an arithmetic number, because the mean of its divisors is an integer number (326178396).

Almost surely, 2^2160215815 is an apocalyptic number.

2160215815 is a deficient number, since it is larger than the sum of its proper divisors (449211353).

2160215815 is a wasteful number, since it uses less digits than its factorization.

2160215815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2861369.

The product of its (nonzero) digits is 4800, while the sum is 31.

The square root of 2160215815 is about 46478.1218962212. The cubic root of 2160215815 is about 1292.7038643745.

The spelling of 2160215815 in words is "two billion, one hundred sixty million, two hundred fifteen thousand, eight hundred fifteen".