66600164 has 6 divisors (see below), whose sum is σ = 116550294. Its totient is φ = 33300080.

The previous prime is 66600161. The next prime is 66600167. The reversal of 66600164 is 46100666.

It is an interprime number because it is at equal distance from previous prime (66600161) and next prime (66600167).

It can be written as a sum of positive squares in only one way, i.e., 62568100 + 4032064 = 7910^2 + 2008^2 .

It is not an unprimeable number, because it can be changed into a prime (66600161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8325017 + ... + 8325024.

It is an arithmetic number, because the mean of its divisors is an integer number (19425049).

Almost surely, 2^66600164 is an apocalyptic number.

It is an amenable number.

66600164 is a deficient number, since it is larger than the sum of its proper divisors (49950130).

66600164 is a wasteful number, since it uses less digits than its factorization.

66600164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16650045 (or 16650043 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 66600164 is about 8160.8923531682. The cubic root of 66600164 is about 405.3452606308.

The spelling of 66600164 in words is "sixty-six million, six hundred thousand, one hundred sixty-four".