2530202666 has 8 divisors (see below), whose sum is σ = 3795862980. Its totient is φ = 1264915008.

The previous prime is 2530202663. The next prime is 2530202681. The reversal of 2530202666 is 6662020352.

It can be written as a sum of positive squares in 2 ways, for example, as 2489511025 + 40691641 = 49895^2 + 6379^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×2530202666³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2530202663) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 75521 + ... + 103748.

Almost surely, 2^2530202666 is an apocalyptic number.

2530202666 is a deficient number, since it is larger than the sum of its proper divisors (1265660314).

2530202666 is a wasteful number, since it uses less digits than its factorization.

2530202666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186328.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 2530202666 is about 50301.1199278903. The cubic root of 2530202666 is about 1362.6524550221.

The spelling of 2530202666 in words is "two billion, five hundred thirty million, two hundred two thousand, six hundred sixty-six".