650540466509472 has 288 divisors, whose sum is σ = 2306650609710720. Its totient is φ = 168957706844160.

The previous prime is 650540466509467. The next prime is 650540466509519. The reversal of 650540466509472 is 274905664045056.

It is a happy number.

650540466509472 is a `hidden beast` number, since 6 + 5 + 0 + 5 + 40 + 46 + 6 + 509 + 47 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×650540466509472² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 270881838 + ... + 273272850.

It is an arithmetic number, because the mean of its divisors is an integer number (8009203505940).

Almost surely, 2^{650540466509472} 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 650540466509472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1153325304855360).

650540466509472 is an abundant number, since it is smaller than the sum of its proper divisors (1656110143201248).

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

650540466509472 is a wasteful number, since it uses less digits than its factorization.

650540466509472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403316 (or 2403305 counting only the distinct ones).

The product of its (nonzero) digits is 217728000, while the sum is 63.

The spelling of 650540466509472 in words is "six hundred fifty trillion, five hundred forty billion, four hundred sixty-six million, five hundred nine thousand, four hundred seventy-two".