64345305650 has 24 divisors (see below), whose sum is σ = 120624660480. Its totient is φ = 25535457360.

The previous prime is 64345305601. The next prime is 64345305743. The reversal of 64345305650 is 5650354346.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 64345305598 and 64345305607.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5060210 + ... + 5072909.

It is an arithmetic number, because the mean of its divisors is an integer number (5026027520).

Almost surely, 2^64345305650 is an apocalyptic number.

64345305650 is a deficient number, since it is larger than the sum of its proper divisors (56279354830).

64345305650 is a wasteful number, since it uses less digits than its factorization.

64345305650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10133258 (or 10133253 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 41.

Adding to 64345305650 its reverse (5650354346), we get a palindrome (69995659996).

The spelling of 64345305650 in words is "sixty-four billion, three hundred forty-five million, three hundred five thousand, six hundred fifty".