650696668 has 6 divisors (see below), whose sum is σ = 1138719176. Its totient is φ = 325348332.

The previous prime is 650696659. The next prime is 650696671. The reversal of 650696668 is 866696056.

It is a super-3 number, since 3×650696668³ (a number of 27 digits) contains 333 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 (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81337080 + ... + 81337087.

Almost surely, 2^650696668 is an apocalyptic number.

It is an amenable number.

650696668 is a deficient number, since it is larger than the sum of its proper divisors (488022508).

650696668 is a wasteful number, since it uses less digits than its factorization.

650696668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162674171 (or 162674169 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 52.

The square root of 650696668 is about 25508.7566925556. The cubic root of 650696668 is about 866.5484723103.

The spelling of 650696668 in words is "six hundred fifty million, six hundred ninety-six thousand, six hundred sixty-eight".