2066172224 has 28 divisors (see below), whose sum is σ = 4103950644. Its totient is φ = 1032105984.

The previous prime is 2066172221. The next prime is 2066172239. The reversal of 2066172224 is 4222716602.

It can be written as a sum of positive squares in 2 ways, for example, as 950612224 + 1115560000 = 30832^2 + 33400^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066172221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55184 + ... + 84720.

Almost surely, 2^2066172224 is an apocalyptic number.

It is an amenable number.

2066172224 is a deficient number, since it is larger than the sum of its proper divisors (2037778420).

2066172224 is a wasteful number, since it uses less digits than its factorization.

2066172224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30642 (or 30632 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 2066172224 is about 45455.1671870207. The cubic root of 2066172224 is about 1273.6658553062.

Adding to 2066172224 its reverse (4222716602), we get a palindrome (6288888826).

The spelling of 2066172224 in words is "two billion, sixty-six million, one hundred seventy-two thousand, two hundred twenty-four".