64534621140000 has 360 divisors, whose sum is σ = 250174919986992. Its totient is φ = 15644756160000.

The previous prime is 64534621139987. The next prime is 64534621140023. The reversal of 64534621140000 is 4112643546.

64534621140000 is a `hidden beast` number, since 6 + 4 + 5 + 34 + 6 + 211 + 400 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 14316622 + ... + 18276621.

Almost surely, 2^{64534621140000} is an apocalyptic number.

64534621140000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64534621140000 is an abundant number, since it is smaller than the sum of its proper divisors (185640298846992).

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

64534621140000 is a wasteful number, since it uses less digits than its factorization.

64534621140000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32593290 (or 32593264 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 64534621140000 its reverse (4112643546), we get a palindrome (64538733783546).

The spelling of 64534621140000 in words is "sixty-four trillion, five hundred thirty-four billion, six hundred twenty-one million, one hundred forty thousand".