64534141056 has 128 divisors (see below), whose sum is σ = 213717058560. Its totient is φ = 16762106880.

The previous prime is 64534141033. The next prime is 64534141073. The reversal of 64534141056 is 65014143546.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1061716 + ... + 1120851.

It is an arithmetic number, because the mean of its divisors is an integer number (1669664520).

Almost surely, 2^64534141056 is an apocalyptic number.

64534141056 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

64534141056 is an abundant number, since it is smaller than the sum of its proper divisors (149182917504).

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

64534141056 is a wasteful number, since it uses less digits than its factorization.

64534141056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2182602 (or 2182590 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 64534141056 in words is "sixty-four billion, five hundred thirty-four million, one hundred forty-one thousand, fifty-six".