66374680 has 32 divisors (see below), whose sum is σ = 149711040. Its totient is φ = 26484480.

The previous prime is 66374663. The next prime is 66374683. The reversal of 66374680 is 8647366.

66374680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66374683) 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 7 ways as a sum of consecutive naturals, for example, 16465 + ... + 20095.

It is an arithmetic number, because the mean of its divisors is an integer number (4678470).

Almost surely, 2^66374680 is an apocalyptic number.

It is an amenable number.

66374680 is an abundant number, since it is smaller than the sum of its proper divisors (83336360).

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

66374680 is a wasteful number, since it uses less digits than its factorization.

66374680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4099 (or 4095 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 66374680 is about 8147.0657294513. The cubic root of 66374680 is about 404.8872927244.

The spelling of 66374680 in words is "sixty-six million, three hundred seventy-four thousand, six hundred eighty".