1830698666 has 16 divisors (see below), whose sum is σ = 2767974720. Its totient is φ = 908051040.

The previous prime is 1830698663. The next prime is 1830698671. The reversal of 1830698666 is 6668960381.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1830698663) 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, 632675 + ... + 635561.

It is an arithmetic number, because the mean of its divisors is an integer number (172998420).

Almost surely, 2^1830698666 is an apocalyptic number.

1830698666 is a deficient number, since it is larger than the sum of its proper divisors (937276054).

1830698666 is a wasteful number, since it uses less digits than its factorization.

1830698666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5309.

The product of its (nonzero) digits is 2239488, while the sum is 53.

The square root of 1830698666 is about 42786.6645813856. The cubic root of 1830698666 is about 1223.3168422980.

The spelling of 1830698666 in words is "one billion, eight hundred thirty million, six hundred ninety-eight thousand, six hundred sixty-six".