1851166112 has 24 divisors (see below), whose sum is σ = 3645526500. Its totient is φ = 925318144.

The previous prime is 1851166087. The next prime is 1851166151. The reversal of 1851166112 is 2116611581.

It can be written as a sum of positive squares in 2 ways, for example, as 1704368656 + 146797456 = 41284^2 + 12116^2 .

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

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, 154514 + ... + 166062.

Almost surely, 2^1851166112 is an apocalyptic number.

It is an amenable number.

1851166112 is a deficient number, since it is larger than the sum of its proper divisors (1794360388).

1851166112 is a wasteful number, since it uses less digits than its factorization.

1851166112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16568 (or 16560 counting only the distinct ones).

The product of its digits is 2880, while the sum is 32.

The square root of 1851166112 is about 43025.1799763813. The cubic root of 1851166112 is about 1227.8589036004.

Adding to 1851166112 its reverse (2116611581), we get a palindrome (3967777693).

The spelling of 1851166112 in words is "one billion, eight hundred fifty-one million, one hundred sixty-six thousand, one hundred twelve".