66700004 has 24 divisors (see below), whose sum is σ = 133573440. Its totient is φ = 28548576.

The previous prime is 66700001. The next prime is 66700033. The reversal of 66700004 is 40000766.

It is not an unprimeable number, because it can be changed into a prime (66700001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39179 + ... + 40845.

It is an arithmetic number, because the mean of its divisors is an integer number (5565560).

Almost surely, 2^66700004 is an apocalyptic number.

It is an amenable number.

66700004 is an abundant number, since it is smaller than the sum of its proper divisors (66873436).

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

66700004 is a wasteful number, since it uses less digits than its factorization.

66700004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3107 (or 3105 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 66700004 is about 8167.0070405259. The cubic root of 66700004 is about 405.5477099071.

It can be divided in two parts, 66 and 700004, that multiplied together give a palindrome (46200264).

The spelling of 66700004 in words is "sixty-six million, seven hundred thousand, four".