650664576 has 224 divisors, whose sum is σ = 2051342400. Its totient is φ = 204913152.

The previous prime is 650664571. The next prime is 650664583. The reversal of 650664576 is 675466056.

It is a super-2 number, since 2×650664576² = 846728780922519552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (650664571) by changing a digit.

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 27 ways as a sum of consecutive naturals, for example, 1772745 + ... + 1773111.

Almost surely, 2^650664576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650664576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1025671200).

650664576 is an abundant number, since it is smaller than the sum of its proper divisors (1400677824).

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

650664576 is an equidigital number, since it uses as much as digits as its factorization.

650664576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The square root of 650664576 is about 25508.1276459093. The cubic root of 650664576 is about 866.5342261788.

The spelling of 650664576 in words is "six hundred fifty million, six hundred sixty-four thousand, five hundred seventy-six".