2123151166 has 8 divisors (see below), whose sum is σ = 3184967160. Its totient is φ = 1061495448.

The previous prime is 2123151089. The next prime is 2123151179. The reversal of 2123151166 is 6611513212.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1800 + ... + 65188.

It is an arithmetic number, because the mean of its divisors is an integer number (398120895).

Almost surely, 2^2123151166 is an apocalyptic number.

2123151166 is a deficient number, since it is larger than the sum of its proper divisors (1061815994).

2123151166 is a wasteful number, since it uses less digits than its factorization.

2123151166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80138.

The product of its digits is 2160, while the sum is 28.

The square root of 2123151166 is about 46077.6645024463. The cubic root of 2123151166 is about 1285.2678343738.

Adding to 2123151166 its reverse (6611513212), we get a palindrome (8734664378).

The spelling of 2123151166 in words is "two billion, one hundred twenty-three million, one hundred fifty-one thousand, one hundred sixty-six".