66250983 has 8 divisors (see below), whose sum is σ = 88387200. Its totient is φ = 44141048.

The previous prime is 66250949. The next prime is 66250991. The reversal of 66250983 is 38905266.

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

It is a cyclic number.

It is not a de Polignac number, because 66250983 - 2⁸ = 66250727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66250183) 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 7 ways as a sum of consecutive naturals, for example, 358 + ... + 11516.

It is an arithmetic number, because the mean of its divisors is an integer number (11048400).

Almost surely, 2^66250983 is an apocalyptic number.

66250983 is a deficient number, since it is larger than the sum of its proper divisors (22136217).

66250983 is a wasteful number, since it uses less digits than its factorization.

66250983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13141.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 66250983 is about 8139.4706830358. The cubic root of 66250983 is about 404.6356180007.

The spelling of 66250983 in words is "sixty-six million, two hundred fifty thousand, nine hundred eighty-three".