664710734233364 has 108 divisors (see below), whose sum is σ = 1548013461702876. Its totient is φ = 247494106331136.

The previous prime is 664710734233289. The next prime is 664710734233391. The reversal of 664710734233364 is 463332437017466.

It can be written as a sum of positive squares in 6 ways, for example, as 138838212100 + 664571896021264 = 372610^2 + 25779292^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 450605297 + ... + 452078040.

Almost surely, 2^{664710734233364} is an apocalyptic number.

It is an amenable number.

664710734233364 is an abundant number, since it is smaller than the sum of its proper divisors (883302727469512).

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

664710734233364 is a wasteful number, since it uses less digits than its factorization.

664710734233364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902683402 (or 902683376 counting only the distinct ones).

The product of its (nonzero) digits is 109734912, while the sum is 59.

The spelling of 664710734233364 in words is "six hundred sixty-four trillion, seven hundred ten billion, seven hundred thirty-four million, two hundred thirty-three thousand, three hundred sixty-four".