64545336024 has 64 divisors (see below), whose sum is σ = 183998031840. Its totient is φ = 18691860480.

The previous prime is 64545335999. The next prime is 64545336029. The reversal of 64545336024 is 42063354546.

It is a happy number.

It is a super-2 number, since 2×64545336024² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64545336029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6079287 + ... + 6089894.

Almost surely, 2^64545336024 is an apocalyptic number.

It is an amenable number.

64545336024 is an abundant number, since it is smaller than the sum of its proper divisors (119452695816).

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

64545336024 is a wasteful number, since it uses less digits than its factorization.

64545336024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12169220 (or 12169216 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 42.

The spelling of 64545336024 in words is "sixty-four billion, five hundred forty-five million, three hundred thirty-six thousand, twenty-four".