604640264660 has 24 divisors (see below), whose sum is σ = 1269923164776. Its totient is φ = 241822085120.

The previous prime is 604640264659. The next prime is 604640264699. The reversal of 604640264660 is 66462046406.

It can be written as a sum of positive squares in 4 ways, for example, as 3683518864 + 600956745796 = 60692^2 + 775214^2 .

It is a super-2 number, since 2×604640264660² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 1980317 + ... + 2265156.

It is an arithmetic number, because the mean of its divisors is an integer number (52913465199).

Almost surely, 2^604640264660 is an apocalyptic number.

It is an amenable number.

604640264660 is an abundant number, since it is smaller than the sum of its proper divisors (665282900116).

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

604640264660 is a wasteful number, since it uses less digits than its factorization.

604640264660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4252603 (or 4252601 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 44.

The spelling of 604640264660 in words is "six hundred four billion, six hundred forty million, two hundred sixty-four thousand, six hundred sixty".