665882430 has 32 divisors (see below), whose sum is σ = 1667602944. Its totient is φ = 169848096.

The previous prime is 665882383. The next prime is 665882443. The reversal of 665882430 is 34288566.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 481834 + ... + 483213.

It is an arithmetic number, because the mean of its divisors is an integer number (52112592).

Almost surely, 2^665882430 is an apocalyptic number.

665882430 is an abundant number, since it is smaller than the sum of its proper divisors (1001720514).

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

665882430 is a wasteful number, since it uses less digits than its factorization.

665882430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965080.

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 665882430 is about 25804.6978281087. The cubic root of 665882430 is about 873.2377834137.

The spelling of 665882430 in words is "six hundred sixty-five million, eight hundred eighty-two thousand, four hundred thirty".