1851153066 has 36 divisors (see below), whose sum is σ = 4665663522. Its totient is φ = 528900624.

The previous prime is 1851153049. The next prime is 1851153077. The reversal of 1851153066 is 6603511581.

1851153066 is a `hidden beast` number, since 18 + 51 + 1 + 530 + 66 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1272991041 + 578162025 = 35679^2 + 24045^2 .

It is a super-2 number, since 2×1851153066² = 6853535347522400712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1851153066.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1048525 + ... + 1050288.

Almost surely, 2^1851153066 is an apocalyptic number.

1851153066 is an abundant number, since it is smaller than the sum of its proper divisors (2814510456).

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

1851153066 is a wasteful number, since it uses less digits than its factorization.

1851153066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098835 (or 2098825 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 1851153066 is about 43025.0283672190. The cubic root of 1851153066 is about 1227.8560191691.

The spelling of 1851153066 in words is "one billion, eight hundred fifty-one million, one hundred fifty-three thousand, sixty-six".