64534540343000 has 256 divisors, whose sum is σ = 187216150867200. Its totient is φ = 20275033190400.

The previous prime is 64534540342981. The next prime is 64534540343011. The reversal of 64534540343000 is 34304543546.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9878786 + ... + 15055214.

It is an arithmetic number, because the mean of its divisors is an integer number (731313089325).

Almost surely, 2^{64534540343000} 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 64534540343000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93608075433600).

64534540343000 is an abundant number, since it is smaller than the sum of its proper divisors (122681610524200).

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

64534540343000 is a wasteful number, since it uses less digits than its factorization.

64534540343000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5176607 (or 5176593 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 41.

Adding to 64534540343000 its reverse (34304543546), we get a palindrome (64568844886546).

The spelling of 64534540343000 in words is "sixty-four trillion, five hundred thirty-four billion, five hundred forty million, three hundred forty-three thousand".