666359596 has 24 divisors (see below), whose sum is σ = 1333265696. Its totient is φ = 285465600.

The previous prime is 666359581. The next prime is 666359597. The reversal of 666359596 is 695953666.

It is a happy number.

It is a super-2 number, since 2×666359596² = 888070222362566432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (666359597) by changing a digit.

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, 131950 + ... + 136906.

Almost surely, 2^666359596 is an apocalyptic number.

It is an amenable number.

666359596 is an abundant number, since it is smaller than the sum of its proper divisors (666906100).

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

666359596 is a wasteful number, since it uses less digits than its factorization.

666359596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9769 (or 9767 counting only the distinct ones).

The product of its digits is 7873200, while the sum is 55.

The square root of 666359596 is about 25813.9418919312. The cubic root of 666359596 is about 873.4463186702.

The spelling of 666359596 in words is "six hundred sixty-six million, three hundred fifty-nine thousand, five hundred ninety-six".