64330390656000 has 1056 divisors, whose sum is σ = 265670408420352. Its totient is φ = 14663349043200.

The previous prime is 64330390655903. The next prime is 64330390656023. The reversal of 64330390656000 is 65609303346.

64330390656000 is a `hidden beast` number, since 6 + 4 + 3 + 3 + 0 + 39 + 0 + 6 + 5 + 600 + 0 = 666.

It is a super-2 number, since 2×64330390656000² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2959477132 + ... + 2959498868.

Almost surely, 2^{64330390656000} is an apocalyptic number.

64330390656000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64330390656000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132835204210176).

64330390656000 is an abundant number, since it is smaller than the sum of its proper divisors (201340017764352).

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

64330390656000 is a wasteful number, since it uses less digits than its factorization.

64330390656000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22152 (or 22121 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 45.

Adding to 64330390656000 its reverse (65609303346), we get a palindrome (64395999959346).

The spelling of 64330390656000 in words is "sixty-four trillion, three hundred thirty billion, three hundred ninety million, six hundred fifty-six thousand".