66387050 has 24 divisors (see below), whose sum is σ = 123715296. Its totient is φ = 26504240.

The previous prime is 66387047. The next prime is 66387067. The reversal of 66387050 is 5078366.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 66387050.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 36257 + ... + 38043.

It is an arithmetic number, because the mean of its divisors is an integer number (5154804).

Almost surely, 2^66387050 is an apocalyptic number.

66387050 is a deficient number, since it is larger than the sum of its proper divisors (57328246).

66387050 is a wasteful number, since it uses less digits than its factorization.

66387050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2542 (or 2537 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 66387050 is about 8147.8248631153. The cubic root of 66387050 is about 404.9124436038.

The spelling of 66387050 in words is "sixty-six million, three hundred eighty-seven thousand, fifty".