64663230000 has 200 divisors, whose sum is σ = 210818154096. Its totient is φ = 17072000000.

The previous prime is 64663229971. The next prime is 64663230001. The reversal of 64663230000 is 3236646.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 64663230000.

It is not an unprimeable number, because it can be changed into a prime (64663230001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3019330 + ... + 3040670.

Almost surely, 2^64663230000 is an apocalyptic number.

64663230000 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 64663230000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105409077048).

64663230000 is an abundant number, since it is smaller than the sum of its proper divisors (146154924096).

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

64663230000 is a wasteful number, since it uses less digits than its factorization.

64663230000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21473 (or 21452 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 64663230000 its reverse (3236646), we get a palindrome (64666466646).

The spelling of 64663230000 in words is "sixty-four billion, six hundred sixty-three million, two hundred thirty thousand".