2172510066 has 8 divisors (see below), whose sum is σ = 4345020144. Its totient is φ = 724170020.

The previous prime is 2172510037. The next prime is 2172510077. The reversal of 2172510066 is 6600152712.

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

2172510066 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181042500 + ... + 181042511.

It is an arithmetic number, because the mean of its divisors is an integer number (543127518).

Almost surely, 2^2172510066 is an apocalyptic number.

2172510066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2172510066 is a wasteful number, since it uses less digits than its factorization.

2172510066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362085016.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 2172510066 is about 46610.1927264842. The cubic root of 2172510066 is about 1295.1515782879.

Adding to 2172510066 its reverse (6600152712), we get a palindrome (8772662778).

The spelling of 2172510066 in words is "two billion, one hundred seventy-two million, five hundred ten thousand, sixty-six".