2170911045 has 16 divisors (see below), whose sum is σ = 3476452032. Its totient is φ = 1156821120.

The previous prime is 2170911031. The next prime is 2170911047. The reversal of 2170911045 is 5401190712.

It is not a de Polignac number, because 2170911045 - 2⁵ = 2170911013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2170911047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44232 + ... + 79361.

It is an arithmetic number, because the mean of its divisors is an integer number (217278252).

Almost surely, 2^2170911045 is an apocalyptic number.

It is an amenable number.

2170911045 is a deficient number, since it is larger than the sum of its proper divisors (1305540987).

2170911045 is a wasteful number, since it uses less digits than its factorization.

2170911045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124772.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 2170911045 is about 46593.0364432283. The cubic root of 2170911045 is about 1294.8337457942.

The spelling of 2170911045 in words is "two billion, one hundred seventy million, nine hundred eleven thousand, forty-five".