64534199522832 has 240 divisors, whose sum is σ = 205966727785728. Its totient is φ = 18686213222400.

The previous prime is 64534199522789. The next prime is 64534199522833. The reversal of 64534199522832 is 23822599143546.

64534199522832 is a `hidden beast` number, since 6 + 4 + 5 + 341 + 9 + 9 + 5 + 2 + 283 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 64534199522832.

It is not an unprimeable number, because it can be changed into a prime (64534199522833) 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 47 ways as a sum of consecutive naturals, for example, 252905103 + ... + 253160145.

Almost surely, 2^{64534199522832} 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 64534199522832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102983363892864).

64534199522832 is an abundant number, since it is smaller than the sum of its proper divisors (141432528262896).

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

64534199522832 is a wasteful number, since it uses less digits than its factorization.

64534199522832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263038 (or 263029 counting only the distinct ones).

The product of its digits is 111974400, while the sum is 63.

The spelling of 64534199522832 in words is "sixty-four trillion, five hundred thirty-four billion, one hundred ninety-nine million, five hundred twenty-two thousand, eight hundred thirty-two".