2164045445 has 8 divisors (see below), whose sum is σ = 2607202080. Its totient is φ = 1724338000.

The previous prime is 2164045441. The next prime is 2164045463. The reversal of 2164045445 is 5445404612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2164045445 - 2² = 2164045441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164045441) 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, 860915 + ... + 863424.

It is an arithmetic number, because the mean of its divisors is an integer number (325900260).

Almost surely, 2^2164045445 is an apocalyptic number.

It is an amenable number.

2164045445 is a deficient number, since it is larger than the sum of its proper divisors (443156635).

2164045445 is a wasteful number, since it uses less digits than its factorization.

2164045445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724595.

The product of its (nonzero) digits is 76800, while the sum is 35.

The square root of 2164045445 is about 46519.3018541766. The cubic root of 2164045445 is about 1293.4673150882.

The spelling of 2164045445 in words is "two billion, one hundred sixty-four million, forty-five thousand, four hundred forty-five".