2251612166 has 8 divisors (see below), whose sum is σ = 3394390800. Its totient is φ = 1120148568.

The previous prime is 2251612147. The next prime is 2251612183. The reversal of 2251612166 is 6612161522.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2828261 + ... + 2829056.

It is an arithmetic number, because the mean of its divisors is an integer number (424298850).

Almost surely, 2^2251612166 is an apocalyptic number.

2251612166 is a deficient number, since it is larger than the sum of its proper divisors (1142778634).

2251612166 is a wasteful number, since it uses less digits than its factorization.

2251612166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5657518.

The product of its digits is 8640, while the sum is 32.

The square root of 2251612166 is about 47451.1555812922. The cubic root of 2251612166 is about 1310.6835905458.

Adding to 2251612166 its reverse (6612161522), we get a palindrome (8863773688).

The spelling of 2251612166 in words is "two billion, two hundred fifty-one million, six hundred twelve thousand, one hundred sixty-six".