2164451570 has 16 divisors (see below), whose sum is σ = 4065405120. Its totient is φ = 828137904.

The previous prime is 2164451539. The next prime is 2164451573. The reversal of 2164451570 is 751544612.

It is a self number, because there is not a number n which added to its sum of digits gives 2164451570.

It is not an unprimeable number, because it can be changed into a prime (2164451573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4705100 + ... + 4705559.

It is an arithmetic number, because the mean of its divisors is an integer number (254087820).

Almost surely, 2^2164451570 is an apocalyptic number.

2164451570 is a deficient number, since it is larger than the sum of its proper divisors (1900953550).

2164451570 is a wasteful number, since it uses less digits than its factorization.

2164451570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9410689.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 2164451570 is about 46523.6667729447. Note that the first 3 decimals coincide. The cubic root of 2164451570 is about 1293.5482247500.

The spelling of 2164451570 in words is "two billion, one hundred sixty-four million, four hundred fifty-one thousand, five hundred seventy".