66926080 has 80 divisors (see below), whose sum is σ = 172895184. Its totient is φ = 24698880.

The previous prime is 66926071. The next prime is 66926129. The reversal of 66926080 is 8062966.

66926080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

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 7 ways as a sum of consecutive naturals, for example, 32275 + ... + 34285.

Almost surely, 2^66926080 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 66926080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86447592).

66926080 is an abundant number, since it is smaller than the sum of its proper divisors (105969104).

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

66926080 is a wasteful number, since it uses less digits than its factorization.

66926080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047 (or 2031 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 66926080 is about 8180.8361430846. The cubic root of 66926080 is about 406.0053871012.

The spelling of 66926080 in words is "sixty-six million, nine hundred twenty-six thousand, eighty".