2158466215 has 16 divisors (see below), whose sum is σ = 2729088000. Its totient is φ = 1634327712.

The previous prime is 2158466113. The next prime is 2158466239. The reversal of 2158466215 is 5126648512.

It is not a de Polignac number, because 2158466215 - 2¹⁹ = 2157941927 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94486 + ... + 115084.

It is an arithmetic number, because the mean of its divisors is an integer number (170568000).

Almost surely, 2^2158466215 is an apocalyptic number.

2158466215 is a deficient number, since it is larger than the sum of its proper divisors (570621785).

2158466215 is a wasteful number, since it uses less digits than its factorization.

2158466215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21726.

The product of its digits is 115200, while the sum is 40.

The square root of 2158466215 is about 46459.2963248476. The cubic root of 2158466215 is about 1292.3547749391.

The spelling of 2158466215 in words is "two billion, one hundred fifty-eight million, four hundred sixty-six thousand, two hundred fifteen".