2175046645 has 16 divisors (see below), whose sum is σ = 2696279040. Its totient is φ = 1682640000.

The previous prime is 2175046639. The next prime is 2175046649. The reversal of 2175046645 is 5466405712.

It is a happy number.

It is not a de Polignac number, because 2175046645 - 2⁵ = 2175046613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2175046598 and 2175046607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2175046649) 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, 237145 + ... + 246145.

It is an arithmetic number, because the mean of its divisors is an integer number (168517440).

Almost surely, 2^2175046645 is an apocalyptic number.

It is an amenable number.

2175046645 is a deficient number, since it is larger than the sum of its proper divisors (521232395).

2175046645 is a wasteful number, since it uses less digits than its factorization.

2175046645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10596.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 2175046645 is about 46637.3953496548. The cubic root of 2175046645 is about 1295.6554465364.

The spelling of 2175046645 in words is "two billion, one hundred seventy-five million, forty-six thousand, six hundred forty-five".