650225664 has 192 divisors, whose sum is σ = 2103192000. Its totient is φ = 196853760.

The previous prime is 650225633. The next prime is 650225671. The reversal of 650225664 is 466522056.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-3 number, since 3×650225664³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 607722 + ... + 608790.

It is an arithmetic number, because the mean of its divisors is an integer number (10954125).

Almost surely, 2^650225664 is an apocalyptic number.

650225664 is a gapful number since it is divisible by the number (64) 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 650225664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1051596000).

650225664 is an abundant number, since it is smaller than the sum of its proper divisors (1452966336).

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

650225664 is a wasteful number, since it uses less digits than its factorization.

650225664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111 (or 1085 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 650225664 is about 25499.5228190647. The cubic root of 650225664 is about 866.3393393737.

The spelling of 650225664 in words is "six hundred fifty million, two hundred twenty-five thousand, six hundred sixty-four".