64411512 has 64 divisors (see below), whose sum is σ = 176515200. Its totient is φ = 19424640.

The previous prime is 64411511. The next prime is 64411519. The reversal of 64411512 is 21511446.

It is a happy number.

It is a super-2 number, since 2×64411512² = 8297685756252288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64411511) 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 15 ways as a sum of consecutive naturals, for example, 70563 + ... + 71469.

It is an arithmetic number, because the mean of its divisors is an integer number (2758050).

Almost surely, 2^64411512 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 64411512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88257600).

64411512 is an abundant number, since it is smaller than the sum of its proper divisors (112103688).

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

64411512 is a wasteful number, since it uses less digits than its factorization.

64411512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196 (or 1192 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 64411512 is about 8025.6782890918. The cubic root of 64411512 is about 400.8554857228.

Adding to 64411512 its reverse (21511446), we get a palindrome (85922958).

The spelling of 64411512 in words is "sixty-four million, four hundred eleven thousand, five hundred twelve".