650489616 has 280 divisors, whose sum is σ = 2237904384. Its totient is φ = 179159040.

The previous prime is 650489603. The next prime is 650489621. The reversal of 650489616 is 616984056.

650489616 is a `hidden beast` number, since 6 + 504 + 89 + 61 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 2530960 + ... + 2531216.

Almost surely, 2^650489616 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 650489616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1118952192).

650489616 is an abundant number, since it is smaller than the sum of its proper divisors (1587414768).

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

650489616 is a wasteful number, since it uses less digits than its factorization.

650489616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 650489616 is about 25504.6979201872. The cubic root of 650489616 is about 866.4565505096.

The spelling of 650489616 in words is "six hundred fifty million, four hundred eighty-nine thousand, six hundred sixteen".