64066680 has 128 divisors (see below), whose sum is σ = 215611200. Its totient is φ = 16920576.

The previous prime is 64066679. The next prime is 64066703. The reversal of 64066680 is 8666046.

64066680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147744 + ... + 148176.

Almost surely, 2^64066680 is an apocalyptic number.

64066680 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 64066680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107805600).

64066680 is an abundant number, since it is smaller than the sum of its proper divisors (151544520).

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

64066680 is a wasteful number, since it uses less digits than its factorization.

64066680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590 (or 580 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 64066680 is about 8004.1664150616. The cubic root of 64066680 is about 400.1388684500.

It can be divided in two parts, 64066 and 680, that added together give a palindrome (64746).

The spelling of 64066680 in words is "sixty-four million, sixty-six thousand, six hundred eighty".