66964510 has 8 divisors (see below), whose sum is σ = 120536136. Its totient is φ = 26785800.

The previous prime is 66964507. The next prime is 66964511. The reversal of 66964510 is 1546966.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 66964510.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66964511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3348216 + ... + 3348235.

It is an arithmetic number, because the mean of its divisors is an integer number (15067017).

Almost surely, 2^66964510 is an apocalyptic number.

66964510 is a deficient number, since it is larger than the sum of its proper divisors (53571626).

66964510 is a wasteful number, since it uses less digits than its factorization.

66964510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6696458.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 66964510 is about 8183.1845879217. The cubic root of 66964510 is about 406.0830837755.

The spelling of 66964510 in words is "sixty-six million, nine hundred sixty-four thousand, five hundred ten".