650659968 has 96 divisors (see below), whose sum is σ = 2139845760. Its totient is φ = 185900544.

The previous prime is 650659957. The next prime is 650659969. The reversal of 650659968 is 869956056.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×650659968² = 846716787915522048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (650659969) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32280 + ... + 48407.

It is an arithmetic number, because the mean of its divisors is an integer number (22290060).

Almost surely, 2^650659968 is an apocalyptic number.

It is an amenable number.

650659968 is an abundant number, since it is smaller than the sum of its proper divisors (1489185792).

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

650659968 is a wasteful number, since it uses less digits than its factorization.

650659968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80714 (or 80699 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 54.

The square root of 650659968 is about 25508.0373215973. The cubic root of 650659968 is about 866.5321805784.

The spelling of 650659968 in words is "six hundred fifty million, six hundred fifty-nine thousand, nine hundred sixty-eight".