530636661 has 12 divisors (see below), whose sum is σ = 768055392. Its totient is φ = 353028456.

The previous prime is 530636653. The next prime is 530636669. The reversal of 530636661 is 166636035.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (530636653) and next prime (530636669).

It is not a de Polignac number, because 530636661 - 2³ = 530636653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530636669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56151 + ... + 64916.

It is an arithmetic number, because the mean of its divisors is an integer number (64004616).

Almost surely, 2^530636661 is an apocalyptic number.

It is an amenable number.

530636661 is a deficient number, since it is larger than the sum of its proper divisors (237418731).

530636661 is a wasteful number, since it uses less digits than its factorization.

530636661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121560 (or 121557 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The square root of 530636661 is about 23035.5521097281. The cubic root of 530636661 is about 809.5911471157.

The spelling of 530636661 in words is "five hundred thirty million, six hundred thirty-six thousand, six hundred sixty-one".