64149533056 has 288 divisors, whose sum is σ = 159343135200. Its totient is φ = 25618360320.

The previous prime is 64149532999. The next prime is 64149533081. The reversal of 64149533056 is 65033594146.

64149533056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 64149532997 and 64149533015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 174794185 + ... + 174794551.

It is an arithmetic number, because the mean of its divisors is an integer number (553274775).

Almost surely, 2^64149533056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64149533056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79671567600).

64149533056 is an abundant number, since it is smaller than the sum of its proper divisors (95193602144).

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

64149533056 is a wasteful number, since it uses less digits than its factorization.

64149533056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 64149533056 in words is "sixty-four billion, one hundred forty-nine million, five hundred thirty-three thousand, fifty-six".