665602846338 has 16 divisors (see below), whose sum is σ = 1341687628800. Its totient is φ = 220120626096.

The previous prime is 665602846327. The next prime is 665602846357. The reversal of 665602846338 is 833648206566.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 436746513 + ... + 436748036.

It is an arithmetic number, because the mean of its divisors is an integer number (83855476800).

Almost surely, 2^665602846338 is an apocalyptic number.

665602846338 is an abundant number, since it is smaller than the sum of its proper divisors (676084782462).

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

665602846338 is a wasteful number, since it uses less digits than its factorization.

665602846338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873494681.

The product of its (nonzero) digits is 29859840, while the sum is 57.

The spelling of 665602846338 in words is "six hundred sixty-five billion, six hundred two million, eight hundred forty-six thousand, three hundred thirty-eight".