650085486821540 has 144 divisors (see below), whose sum is σ = 1748329516866240. Its totient is φ = 200765111258880.

The previous prime is 650085486821521. The next prime is 650085486821567. The reversal of 650085486821540 is 45128684580056.

It is a happy number.

It is a super-2 number, since 2×650085486821540² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 275452394 + ... + 277802433.

It is an arithmetic number, because the mean of its divisors is an integer number (12141177200460).

Almost surely, 2^{650085486821540} is an apocalyptic number.

It is an amenable number.

650085486821540 is an abundant number, since it is smaller than the sum of its proper divisors (1098244030044700).

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

650085486821540 is a wasteful number, since it uses less digits than its factorization.

650085486821540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553254970 (or 553254961 counting only the distinct ones).

The product of its (nonzero) digits is 73728000, while the sum is 62.

The spelling of 650085486821540 in words is "six hundred fifty trillion, eighty-five billion, four hundred eighty-six million, eight hundred twenty-one thousand, five hundred forty".