683345664 has 54 divisors (see below), whose sum is σ = 1970260656. Its totient is φ = 227781120.

The previous prime is 683345653. The next prime is 683345701. The reversal of 683345664 is 466543386.

683345664 is a `hidden beast` number, since 6 + 83 + 3 + 4 + 566 + 4 = 666.

It is a super-2 number, since 2×683345664² = 933922593015201792, which 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 (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 145992 + ... + 150599.

Almost surely, 2^683345664 is an apocalyptic number.

683345664 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

683345664 is an abundant number, since it is smaller than the sum of its proper divisors (1286914992).

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

683345664 is a wasteful number, since it uses less digits than its factorization.

683345664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296613 (or 296596 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 45.

The square root of 683345664 is about 26140.8810869106. The cubic root of 683345664 is about 880.8057633629.

The spelling of 683345664 in words is "six hundred eighty-three million, three hundred forty-five thousand, six hundred sixty-four".