64111112 has 48 divisors (see below), whose sum is σ = 134255940. Its totient is φ = 28530432.

The previous prime is 64111093. The next prime is 64111123. The reversal of 64111112 is 21111146.

It can be written as a sum of positive squares in 6 ways, for example, as 41396356 + 22714756 = 6434^2 + 4766^2 .

It is a super-2 number, since 2×64111112² = 8220469363753088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87098 + ... + 87830.

Almost surely, 2^64111112 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 64111112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67127970).

64111112 is an abundant number, since it is smaller than the sum of its proper divisors (70144828).

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

64111112 is a wasteful number, since it uses less digits than its factorization.

64111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810 (or 777 counting only the distinct ones).

The product of its digits is 48, while the sum is 17.

The square root of 64111112 is about 8006.9414884836. The cubic root of 64111112 is about 400.2313495011.

Adding to 64111112 its reverse (21111146), we get a palindrome (85222258).

The spelling of 64111112 in words is "sixty-four million, one hundred eleven thousand, one hundred twelve".