253080666 has 64 divisors (see below), whose sum is σ = 611660160. Its totient is φ = 77241600.

The previous prime is 253080623. The next prime is 253080673. The reversal of 253080666 is 666080352.

It is a self number, because there is not a number n which added to its sum of digits gives 253080666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30241 + ... + 37691.

It is an arithmetic number, because the mean of its divisors is an integer number (9557190).

Almost surely, 2^253080666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253080666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305830080).

253080666 is an abundant number, since it is smaller than the sum of its proper divisors (358579494).

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

253080666 is a wasteful number, since it uses less digits than its factorization.

253080666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7516 (or 7510 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 253080666 is about 15908.5092324831. The cubic root of 253080666 is about 632.5375657150.

The spelling of 253080666 in words is "two hundred fifty-three million, eighty thousand, six hundred sixty-six".