650668220160 has 288 divisors, whose sum is σ = 2376317379072. Its totient is φ = 148637859840.

The previous prime is 650668220071. The next prime is 650668220161. The reversal of 650668220160 is 61022866056.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650668220161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54049662 + ... + 54061698.

Almost surely, 2^650668220160 is an apocalyptic number.

650668220160 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650668220160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1188158689536).

650668220160 is an abundant number, since it is smaller than the sum of its proper divisors (1725649158912).

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

650668220160 is a wasteful number, since it uses less digits than its factorization.

650668220160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14079 (or 14065 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 650668220160 in words is "six hundred fifty billion, six hundred sixty-eight million, two hundred twenty thousand, one hundred sixty".