2158845170 has 32 divisors (see below), whose sum is σ = 4148081280. Its totient is φ = 806561280.

The previous prime is 2158845167. The next prime is 2158845191. The reversal of 2158845170 is 715488512.

It is a super-2 number, since 2×2158845170² = 9321224936064657800, which contains 22 as substring.

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, 66527 + ... + 93506.

It is an arithmetic number, because the mean of its divisors is an integer number (129627540).

Almost surely, 2^2158845170 is an apocalyptic number.

2158845170 is a deficient number, since it is larger than the sum of its proper divisors (1989236110).

2158845170 is a wasteful number, since it uses less digits than its factorization.

2158845170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160130.

The product of its (nonzero) digits is 89600, while the sum is 41.

The square root of 2158845170 is about 46463.3745007829. The cubic root of 2158845170 is about 1292.4304020429.

The spelling of 2158845170 in words is "two billion, one hundred fifty-eight million, eight hundred forty-five thousand, one hundred seventy".