630166293 has 18 divisors (see below), whose sum is σ = 960673974. Its totient is φ = 397997712.

The previous prime is 630166291. The next prime is 630166307. The reversal of 630166293 is 392661036.

630166293 is a `hidden beast` number, since 6 + 301 + 66 + 293 = 666.

630166293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 400280049 + 229886244 = 20007^2 + 15162^2 .

It is not a de Polignac number, because 630166293 - 2¹ = 630166291 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630166291) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 93730 + ... + 100227.

Almost surely, 2^630166293 is an apocalyptic number.

It is an amenable number.

630166293 is a deficient number, since it is larger than the sum of its proper divisors (330507681).

630166293 is a wasteful number, since it uses less digits than its factorization.

630166293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194001 (or 193979 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 630166293 is about 25103.1132133048. The cubic root of 630166293 is about 857.3373083954.

The spelling of 630166293 in words is "six hundred thirty million, one hundred sixty-six thousand, two hundred ninety-three".