64143352112 has 80 divisors (see below), whose sum is σ = 147163348800. Its totient is φ = 26499809280.

The previous prime is 64143352057. The next prime is 64143352127. The reversal of 64143352112 is 21125334146.

It is a super-2 number, since 2×64143352112² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2066564 + ... + 2097372.

It is an arithmetic number, because the mean of its divisors is an integer number (1839541860).

Almost surely, 2^64143352112 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 64143352112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73581674400).

64143352112 is an abundant number, since it is smaller than the sum of its proper divisors (83019996688).

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

64143352112 is a wasteful number, since it uses less digits than its factorization.

64143352112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31494 (or 31488 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

Adding to 64143352112 its reverse (21125334146), we get a palindrome (85268686258).

The spelling of 64143352112 in words is "sixty-four billion, one hundred forty-three million, three hundred fifty-two thousand, one hundred twelve".