66511083 has 8 divisors (see below), whose sum is σ = 89320000. Its totient is φ = 44021448.

The previous prime is 66511079. The next prime is 66511087. The reversal of 66511083 is 38011566.

It is an interprime number because it is at equal distance from previous prime (66511079) and next prime (66511087).

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

It is not a de Polignac number, because 66511083 - 2² = 66511079 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 66511083.

It is not an unprimeable number, because it can be changed into a prime (66511087) 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, 79333 + ... + 80166.

It is an arithmetic number, because the mean of its divisors is an integer number (11165000).

Almost surely, 2^66511083 is an apocalyptic number.

66511083 is a deficient number, since it is larger than the sum of its proper divisors (22808917).

66511083 is a wasteful number, since it uses less digits than its factorization.

66511083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159641.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 66511083 is about 8155.4327291689. The cubic root of 66511083 is about 405.1644569112.

The spelling of 66511083 in words is "sixty-six million, five hundred eleven thousand, eighty-three".