2530701666 has 12 divisors (see below), whose sum is σ = 5483186982. Its totient is φ = 843567216.

The previous prime is 2530701659. The next prime is 2530701673. The reversal of 2530701666 is 6661070352.

It is an interprime number because it is at equal distance from previous prime (2530701659) and next prime (2530701673).

It can be written as a sum of positive squares in only one way, i.e., 1767782025 + 762919641 = 42045^2 + 27621^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2530701666.

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 5 ways as a sum of consecutive naturals, for example, 70297251 + ... + 70297286.

Almost surely, 2^2530701666 is an apocalyptic number.

2530701666 is an abundant number, since it is smaller than the sum of its proper divisors (2952485316).

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

2530701666 is a wasteful number, since it uses less digits than its factorization.

2530701666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140594545 (or 140594542 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 2530701666 is about 50306.0798114900. The cubic root of 2530701666 is about 1362.7420287269.

The spelling of 2530701666 in words is "two billion, five hundred thirty million, seven hundred one thousand, six hundred sixty-six".