66412083 has 4 divisors (see below), whose sum is σ = 88549448. Its totient is φ = 44274720.

The previous prime is 66412079. The next prime is 66412133. The reversal of 66412083 is 38021466.

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

It is not a de Polignac number, because 66412083 - 2² = 66412079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66412083.

It is not an unprimeable number, because it can be changed into a prime (66412033) 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, 11068678 + ... + 11068683.

It is an arithmetic number, because the mean of its divisors is an integer number (22137362).

Almost surely, 2^66412083 is an apocalyptic number.

66412083 is a deficient number, since it is larger than the sum of its proper divisors (22137365).

66412083 is a wasteful number, since it uses less digits than its factorization.

66412083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22137364.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 66412083 is about 8149.3608951868. The cubic root of 66412083 is about 404.9633315377.

The spelling of 66412083 in words is "sixty-six million, four hundred twelve thousand, eighty-three".