2122749166 has 16 divisors (see below), whose sum is σ = 3518010144. Its totient is φ = 955508224.

The previous prime is 2122749157. The next prime is 2122749169. The reversal of 2122749166 is 6619472212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122749169) 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, 1356475 + ... + 1358038.

It is an arithmetic number, because the mean of its divisors is an integer number (219875634).

Almost surely, 2^2122749166 is an apocalyptic number.

2122749166 is a deficient number, since it is larger than the sum of its proper divisors (1395260978).

2122749166 is a wasteful number, since it uses less digits than its factorization.

2122749166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2714555.

The product of its digits is 72576, while the sum is 40.

The square root of 2122749166 is about 46073.3020956823. The cubic root of 2122749166 is about 1285.1867112001.

The spelling of 2122749166 in words is "two billion, one hundred twenty-two million, seven hundred forty-nine thousand, one hundred sixty-six".