66070710 has 48 divisors (see below), whose sum is σ = 174363696. Its totient is φ = 17354304.

The previous prime is 66070709. The next prime is 66070717. The reversal of 66070710 is 1707066.

66070710 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66070717) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 552 + ... + 11508.

It is an arithmetic number, because the mean of its divisors is an integer number (3632577).

Almost surely, 2^66070710 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66070710, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87181848).

66070710 is an abundant number, since it is smaller than the sum of its proper divisors (108292986).

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

66070710 is a wasteful number, since it uses less digits than its factorization.

66070710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11037 (or 11034 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 66070710 is about 8128.3891393068. The cubic root of 66070710 is about 404.2682718062.

Adding to 66070710 its reverse (1707066), we get a palindrome (67777776).

The spelling of 66070710 in words is "sixty-six million, seventy thousand, seven hundred ten".