66779483 has 4 divisors (see below), whose sum is σ = 67440768. Its totient is φ = 66118200.

The previous prime is 66779467. The next prime is 66779491. The reversal of 66779483 is 38497766.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66779483 - 2⁴ = 66779467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66779443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330491 + ... + 330692.

It is an arithmetic number, because the mean of its divisors is an integer number (16860192).

Almost surely, 2^66779483 is an apocalyptic number.

66779483 is a deficient number, since it is larger than the sum of its proper divisors (661285).

66779483 is a wasteful number, since it uses less digits than its factorization.

66779483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661284.

The product of its digits is 1524096, while the sum is 50.

The square root of 66779483 is about 8171.8714502860. The cubic root of 66779483 is about 405.7087280497.

The spelling of 66779483 in words is "sixty-six million, seven hundred seventy-nine thousand, four hundred eighty-three".