667601596 has 12 divisors (see below), whose sum is σ = 1168484800. Its totient is φ = 333748800.

The previous prime is 667601581. The next prime is 667601609. The reversal of 667601596 is 695106766.

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 3 ways as a sum of consecutive naturals, for example, 38980 + ... + 53428.

Almost surely, 2^667601596 is an apocalyptic number.

It is an amenable number.

667601596 is a deficient number, since it is larger than the sum of its proper divisors (500883204).

667601596 is a wasteful number, since it uses less digits than its factorization.

667601596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26004 (or 26002 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 667601596 is about 25837.9874603267. The cubic root of 667601596 is about 873.9886419880.

The spelling of 667601596 in words is "six hundred sixty-seven million, six hundred one thousand, five hundred ninety-six".