64326505650 has 96 divisors (see below), whose sum is σ = 174091232448. Its totient is φ = 15589036800.

The previous prime is 64326505603. The next prime is 64326505651. The reversal of 64326505650 is 5650562346.

64326505650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (64326505651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7409112 + ... + 7417788.

It is an arithmetic number, because the mean of its divisors is an integer number (1813450338).

Almost surely, 2^64326505650 is an apocalyptic number.

64326505650 is an abundant number, since it is smaller than the sum of its proper divisors (109764726798).

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

64326505650 is a wasteful number, since it uses less digits than its factorization.

64326505650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13196 (or 13191 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 64326505650 in words is "sixty-four billion, three hundred twenty-six million, five hundred five thousand, six hundred fifty".