64204946766 has 24 divisors (see below), whose sum is σ = 139154193360. Its totient is φ = 21394960416.

The previous prime is 64204946761. The next prime is 64204946789. The reversal of 64204946766 is 66764940246.

It is a happy number.

64204946766 is a `hidden beast` number, since 64 + 20 + 49 + 467 + 66 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64204946761) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 498010 + ... + 613533.

It is an arithmetic number, because the mean of its divisors is an integer number (5798091390).

Almost surely, 2^64204946766 is an apocalyptic number.

64204946766 is an abundant number, since it is smaller than the sum of its proper divisors (74949246594).

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

64204946766 is a wasteful number, since it uses less digits than its factorization.

64204946766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114760 (or 1114757 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 54.

The spelling of 64204946766 in words is "sixty-four billion, two hundred four million, nine hundred forty-six thousand, seven hundred sixty-six".