64680026112 has 504 divisors, whose sum is σ = 210465847800. Its totient is φ = 19107938304.

The previous prime is 64680026087. The next prime is 64680026113. The reversal of 64680026112 is 21162008646.

64680026112 is a `hidden beast` number, since 646 + 8 + 0 + 0 + 2 + 6 + 1 + 1 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64680026113) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 361340839 + ... + 361341017.

Almost surely, 2^64680026112 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 64680026112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105232923900).

64680026112 is an abundant number, since it is smaller than the sum of its proper divisors (145785821688).

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

64680026112 is a wasteful number, since it uses less digits than its factorization.

64680026112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 64680026112 in words is "sixty-four billion, six hundred eighty million, twenty-six thousand, one hundred twelve".